Merge branch 'dev' into 'dev'

Dev sync

See merge request kostikov/core!5

15 files changed, 3471 insertions, 4063 deletions

diff --git a/vendor/blueimp/jquery-file-upload/js/app.js b/vendor/blueimp/jquery-file-upload/js/app.js
deleted file mode 100644
index e6b7bce3e..000000000
--- a/vendor/blueimp/jquery-file-upload/js/app.js
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * jQuery File Upload Plugin Angular JS Example
- * https://github.com/blueimp/jQuery-File-Upload
- *
- * Copyright 2013, Sebastian Tschan
- * https://blueimp.net
- *
- * Licensed under the MIT license:
- * https://opensource.org/licenses/MIT
- */
-
-/* jshint nomen:false */
-/* global window, angular */
-
-;(function () {
-    'use strict';
-
-    var isOnGitHub = window.location.hostname === 'blueimp.github.io',
-        url = isOnGitHub ? '//jquery-file-upload.appspot.com/' : 'server/php/';
-
-    angular.module('demo', [
-        'blueimp.fileupload'
-    ])
-        .config([
-            '$httpProvider', 'fileUploadProvider',
-            function ($httpProvider, fileUploadProvider) {
-                delete $httpProvider.defaults.headers.common['X-Requested-With'];
-                fileUploadProvider.defaults.redirect = window.location.href.replace(
-                    /\/[^\/]*$/,
-                    '/cors/result.html?%s'
-                );
-                if (isOnGitHub) {
-                    // Demo settings:
-                    angular.extend(fileUploadProvider.defaults, {
-                        // Enable image resizing, except for Android and Opera,
-                        // which actually support image resizing, but fail to
-                        // send Blob objects via XHR requests:
-                        disableImageResize: /Android(?!.*Chrome)|Opera/
-                            .test(window.navigator.userAgent),
-                        maxFileSize: 999000,
-                        acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
-                    });
-                }
-            }
-        ])
-
-        .controller('DemoFileUploadController', [
-            '$scope', '$http', '$filter', '$window',
-            function ($scope, $http) {
-                $scope.options = {
-                    url: url
-                };
-                if (!isOnGitHub) {
-                    $scope.loadingFiles = true;
-                    $http.get(url)
-                        .then(
-                            function (response) {
-                                $scope.loadingFiles = false;
-                                $scope.queue = response.data.files || [];
-                            },
-                            function () {
-                                $scope.loadingFiles = false;
-                            }
-                        );
-                }
-            }
-        ])
-
-        .controller('FileDestroyController', [
-            '$scope', '$http',
-            function ($scope, $http) {
-                var file = $scope.file,
-                    state;
-                if (file.url) {
-                    file.$state = function () {
-                        return state;
-                    };
-                    file.$destroy = function () {
-                        state = 'pending';
-                        return $http({
-                            url: file.deleteUrl,
-                            method: file.deleteType
-                        }).then(
-                            function () {
-                                state = 'resolved';
-                                $scope.clear(file);
-                            },
-                            function () {
-                                state = 'rejected';
-                            }
-                        );
-                    };
-                } else if (!file.$cancel && !file._index) {
-                    file.$cancel = function () {
-                        $scope.clear(file);
-                    };
-                }
-            }
-        ]);
-
-}());
diff --git a/vendor/blueimp/jquery-file-upload/js/cors/jquery.postmessage-transport.js b/vendor/blueimp/jquery-file-upload/js/cors/jquery.postmessage-transport.js
index 2a0c38cb6..0a3d9fe45 100644
--- a/vendor/blueimp/jquery-file-upload/js/cors/jquery.postmessage-transport.js
+++ b/vendor/blueimp/jquery-file-upload/js/cors/jquery.postmessage-transport.js
@@ -9,118 +9,118 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define, require, window, document */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define(['jquery'], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(require('jquery'));
-    } else {
-        // Browser globals:
-        factory(window.jQuery);
-    }
-}(function ($) {
-    'use strict';
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(require('jquery'));
+  } else {
+    // Browser globals:
+    factory(window.jQuery);
+  }
+})(function($) {
+  'use strict';
 
-    var counter = 0,
-        names = [
-            'accepts',
-            'cache',
-            'contents',
-            'contentType',
-            'crossDomain',
-            'data',
-            'dataType',
-            'headers',
-            'ifModified',
-            'mimeType',
-            'password',
-            'processData',
-            'timeout',
-            'traditional',
-            'type',
-            'url',
-            'username'
-        ],
-        convert = function (p) {
-            return p;
-        };
+  var counter = 0,
+    names = [
+      'accepts',
+      'cache',
+      'contents',
+      'contentType',
+      'crossDomain',
+      'data',
+      'dataType',
+      'headers',
+      'ifModified',
+      'mimeType',
+      'password',
+      'processData',
+      'timeout',
+      'traditional',
+      'type',
+      'url',
+      'username'
+    ],
+    convert = function(p) {
+      return p;
+    };
 
-    $.ajaxSetup({
-        converters: {
-            'postmessage text': convert,
-            'postmessage json': convert,
-            'postmessage html': convert
-        }
-    });
+  $.ajaxSetup({
+    converters: {
+      'postmessage text': convert,
+      'postmessage json': convert,
+      'postmessage html': convert
+    }
+  });
 
-    $.ajaxTransport('postmessage', function (options) {
-        if (options.postMessage && window.postMessage) {
-            var iframe,
-                loc = $('<a>').prop('href', options.postMessage)[0],
-                target = loc.protocol + '//' + loc.host,
-                xhrUpload = options.xhr().upload;
-            // IE always includes the port for the host property of a link
-            // element, but not in the location.host or origin property for the
-            // default http port 80 and https port 443, so we strip it:
-            if (/^(http:\/\/.+:80)|(https:\/\/.+:443)$/.test(target)) {
-              target = target.replace(/:(80|443)$/, '');
-            }
-            return {
-                send: function (_, completeCallback) {
-                    counter += 1;
-                    var message = {
-                            id: 'postmessage-transport-' + counter
-                        },
-                        eventName = 'message.' + message.id;
-                    iframe = $(
-                        '<iframe style="display:none;" src="' +
-                            options.postMessage + '" name="' +
-                            message.id + '"></iframe>'
-                    ).bind('load', function () {
-                        $.each(names, function (i, name) {
-                            message[name] = options[name];
-                        });
-                        message.dataType = message.dataType.replace('postmessage ', '');
-                        $(window).bind(eventName, function (e) {
-                            e = e.originalEvent;
-                            var data = e.data,
-                                ev;
-                            if (e.origin === target && data.id === message.id) {
-                                if (data.type === 'progress') {
-                                    ev = document.createEvent('Event');
-                                    ev.initEvent(data.type, false, true);
-                                    $.extend(ev, data);
-                                    xhrUpload.dispatchEvent(ev);
-                                } else {
-                                    completeCallback(
-                                        data.status,
-                                        data.statusText,
-                                        {postmessage: data.result},
-                                        data.headers
-                                    );
-                                    iframe.remove();
-                                    $(window).unbind(eventName);
-                                }
-                            }
-                        });
-                        iframe[0].contentWindow.postMessage(
-                            message,
-                            target
-                        );
-                    }).appendTo(document.body);
-                },
-                abort: function () {
-                    if (iframe) {
-                        iframe.remove();
-                    }
+  $.ajaxTransport('postmessage', function(options) {
+    if (options.postMessage && window.postMessage) {
+      var iframe,
+        loc = $('<a>').prop('href', options.postMessage)[0],
+        target = loc.protocol + '//' + loc.host,
+        xhrUpload = options.xhr().upload;
+      // IE always includes the port for the host property of a link
+      // element, but not in the location.host or origin property for the
+      // default http port 80 and https port 443, so we strip it:
+      if (/^(http:\/\/.+:80)|(https:\/\/.+:443)$/.test(target)) {
+        target = target.replace(/:(80|443)$/, '');
+      }
+      return {
+        send: function(_, completeCallback) {
+          counter += 1;
+          var message = {
+              id: 'postmessage-transport-' + counter
+            },
+            eventName = 'message.' + message.id;
+          iframe = $(
+            '<iframe style="display:none;" src="' +
+              options.postMessage +
+              '" name="' +
+              message.id +
+              '"></iframe>'
+          )
+            .bind('load', function() {
+              $.each(names, function(i, name) {
+                message[name] = options[name];
+              });
+              message.dataType = message.dataType.replace('postmessage ', '');
+              $(window).bind(eventName, function(event) {
+                var e = event.originalEvent;
+                var data = e.data;
+                var ev;
+                if (e.origin === target && data.id === message.id) {
+                  if (data.type === 'progress') {
+                    ev = document.createEvent('Event');
+                    ev.initEvent(data.type, false, true);
+                    $.extend(ev, data);
+                    xhrUpload.dispatchEvent(ev);
+                  } else {
+                    completeCallback(
+                      data.status,
+                      data.statusText,
+                      { postmessage: data.result },
+                      data.headers
+                    );
+                    iframe.remove();
+                    $(window).unbind(eventName);
+                  }
                 }
-            };
+              });
+              iframe[0].contentWindow.postMessage(message, target);
+            })
+            .appendTo(document.body);
+        },
+        abort: function() {
+          if (iframe) {
+            iframe.remove();
+          }
         }
-    });
-
-}));
+      };
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/cors/jquery.xdr-transport.js b/vendor/blueimp/jquery-file-upload/js/cors/jquery.xdr-transport.js
index a4e2699c6..68e36be58 100644
--- a/vendor/blueimp/jquery-file-upload/js/cors/jquery.xdr-transport.js
+++ b/vendor/blueimp/jquery-file-upload/js/cors/jquery.xdr-transport.js
@@ -12,78 +12,86 @@
  * https://github.com/jaubourg/ajaxHooks/
  */
 
-/* global define, require, window, XDomainRequest */
+/* global define, require, XDomainRequest */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define(['jquery'], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(require('jquery'));
-    } else {
-        // Browser globals:
-        factory(window.jQuery);
-    }
-}(function ($) {
-    'use strict';
-    if (window.XDomainRequest && !$.support.cors) {
-        $.ajaxTransport(function (s) {
-            if (s.crossDomain && s.async) {
-                if (s.timeout) {
-                    s.xdrTimeout = s.timeout;
-                    delete s.timeout;
-                }
-                var xdr;
-                return {
-                    send: function (headers, completeCallback) {
-                        var addParamChar = /\?/.test(s.url) ? '&' : '?';
-                        function callback(status, statusText, responses, responseHeaders) {
-                            xdr.onload = xdr.onerror = xdr.ontimeout = $.noop;
-                            xdr = null;
-                            completeCallback(status, statusText, responses, responseHeaders);
-                        }
-                        xdr = new XDomainRequest();
-                        // XDomainRequest only supports GET and POST:
-                        if (s.type === 'DELETE') {
-                            s.url = s.url + addParamChar + '_method=DELETE';
-                            s.type = 'POST';
-                        } else if (s.type === 'PUT') {
-                            s.url = s.url + addParamChar + '_method=PUT';
-                            s.type = 'POST';
-                        } else if (s.type === 'PATCH') {
-                            s.url = s.url + addParamChar + '_method=PATCH';
-                            s.type = 'POST';
-                        }
-                        xdr.open(s.type, s.url);
-                        xdr.onload = function () {
-                            callback(
-                                200,
-                                'OK',
-                                {text: xdr.responseText},
-                                'Content-Type: ' + xdr.contentType
-                            );
-                        };
-                        xdr.onerror = function () {
-                            callback(404, 'Not Found');
-                        };
-                        if (s.xdrTimeout) {
-                            xdr.ontimeout = function () {
-                                callback(0, 'timeout');
-                            };
-                            xdr.timeout = s.xdrTimeout;
-                        }
-                        xdr.send((s.hasContent && s.data) || null);
-                    },
-                    abort: function () {
-                        if (xdr) {
-                            xdr.onerror = $.noop();
-                            xdr.abort();
-                        }
-                    }
-                };
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(require('jquery'));
+  } else {
+    // Browser globals:
+    factory(window.jQuery);
+  }
+})(function($) {
+  'use strict';
+  if (window.XDomainRequest && !$.support.cors) {
+    $.ajaxTransport(function(s) {
+      if (s.crossDomain && s.async) {
+        if (s.timeout) {
+          s.xdrTimeout = s.timeout;
+          delete s.timeout;
+        }
+        var xdr;
+        return {
+          send: function(headers, completeCallback) {
+            var addParamChar = /\?/.test(s.url) ? '&' : '?';
+            /**
+             * Callback wrapper function
+             *
+             * @param {number} status HTTP status code
+             * @param {string} statusText HTTP status text
+             * @param {object} [responses] Content-type specific responses
+             * @param {string} [responseHeaders] Response headers string
+             */
+            function callback(status, statusText, responses, responseHeaders) {
+              xdr.onload = xdr.onerror = xdr.ontimeout = $.noop;
+              xdr = null;
+              completeCallback(status, statusText, responses, responseHeaders);
             }
-        });
-    }
-}));
+            xdr = new XDomainRequest();
+            // XDomainRequest only supports GET and POST:
+            if (s.type === 'DELETE') {
+              s.url = s.url + addParamChar + '_method=DELETE';
+              s.type = 'POST';
+            } else if (s.type === 'PUT') {
+              s.url = s.url + addParamChar + '_method=PUT';
+              s.type = 'POST';
+            } else if (s.type === 'PATCH') {
+              s.url = s.url + addParamChar + '_method=PATCH';
+              s.type = 'POST';
+            }
+            xdr.open(s.type, s.url);
+            xdr.onload = function() {
+              callback(
+                200,
+                'OK',
+                { text: xdr.responseText },
+                'Content-Type: ' + xdr.contentType
+              );
+            };
+            xdr.onerror = function() {
+              callback(404, 'Not Found');
+            };
+            if (s.xdrTimeout) {
+              xdr.ontimeout = function() {
+                callback(0, 'timeout');
+              };
+              xdr.timeout = s.xdrTimeout;
+            }
+            xdr.send((s.hasContent && s.data) || null);
+          },
+          abort: function() {
+            if (xdr) {
+              xdr.onerror = $.noop();
+              xdr.abort();
+            }
+          }
+        };
+      }
+    });
+  }
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/demo.js b/vendor/blueimp/jquery-file-upload/js/demo.js
new file mode 100644
index 000000000..bb4eccd6e
--- /dev/null
+++ b/vendor/blueimp/jquery-file-upload/js/demo.js
@@ -0,0 +1,75 @@
+/*
+ * jQuery File Upload Demo
+ * https://github.com/blueimp/jQuery-File-Upload
+ *
+ * Copyright 2010, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * https://opensource.org/licenses/MIT
+ */
+
+/* global $ */
+
+$(function() {
+  'use strict';
+
+  // Initialize the jQuery File Upload widget:
+  $('#fileupload').fileupload({
+    // Uncomment the following to send cross-domain cookies:
+    //xhrFields: {withCredentials: true},
+    url: 'server/php/'
+  });
+
+  // Enable iframe cross-domain access via redirect option:
+  $('#fileupload').fileupload(
+    'option',
+    'redirect',
+    window.location.href.replace(/\/[^/]*$/, '/cors/result.html?%s')
+  );
+
+  if (window.location.hostname === 'blueimp.github.io') {
+    // Demo settings:
+    $('#fileupload').fileupload('option', {
+      url: '//jquery-file-upload.appspot.com/',
+      // Enable image resizing, except for Android and Opera,
+      // which actually support image resizing, but fail to
+      // send Blob objects via XHR requests:
+      disableImageResize: /Android(?!.*Chrome)|Opera/.test(
+        window.navigator.userAgent
+      ),
+      maxFileSize: 999000,
+      acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
+    });
+    // Upload server status check for browsers with CORS support:
+    if ($.support.cors) {
+      $.ajax({
+        url: '//jquery-file-upload.appspot.com/',
+        type: 'HEAD'
+      }).fail(function() {
+        $('<div class="alert alert-danger"/>')
+          .text('Upload server currently unavailable - ' + new Date())
+          .appendTo('#fileupload');
+      });
+    }
+  } else {
+    // Load existing files:
+    $('#fileupload').addClass('fileupload-processing');
+    $.ajax({
+      // Uncomment the following to send cross-domain cookies:
+      //xhrFields: {withCredentials: true},
+      url: $('#fileupload').fileupload('option', 'url'),
+      dataType: 'json',
+      context: $('#fileupload')[0]
+    })
+      .always(function() {
+        $(this).removeClass('fileupload-processing');
+      })
+      .done(function(result) {
+        $(this)
+          .fileupload('option', 'done')
+          // eslint-disable-next-line new-cap
+          .call(this, $.Event('done'), { result: result });
+      });
+  }
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-angular.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-angular.js
deleted file mode 100644
index 185907d36..000000000
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-angular.js
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * jQuery File Upload AngularJS Plugin
- * https://github.com/blueimp/jQuery-File-Upload
- *
- * Copyright 2013, Sebastian Tschan
- * https://blueimp.net
- *
- * Licensed under the MIT license:
- * https://opensource.org/licenses/MIT
- */
-
-/* jshint nomen:false */
-/* global define, angular, require */
-
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            'angular',
-            './jquery.fileupload-image',
-            './jquery.fileupload-audio',
-            './jquery.fileupload-video',
-            './jquery.fileupload-validate'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('angular'),
-            require('./jquery.fileupload-image'),
-            require('./jquery.fileupload-audio'),
-            require('./jquery.fileupload-video'),
-            require('./jquery.fileupload-validate')
-        );
-    } else {
-        factory();
-    }
-}(function () {
-    'use strict';
-
-    angular.module('blueimp.fileupload', [])
-
-        // The fileUpload service provides configuration options
-        // for the fileUpload directive and default handlers for
-        // File Upload events:
-        .provider('fileUpload', function () {
-            var scopeEvalAsync = function (expression) {
-                    var scope = angular.element(this)
-                            .fileupload('option', 'scope');
-                    // Schedule a new $digest cycle if not already inside of one
-                    // and evaluate the given expression:
-                    scope.$evalAsync(expression);
-                },
-                addFileMethods = function (scope, data) {
-                    var files = data.files,
-                        file = files[0];
-                    angular.forEach(files, function (file, index) {
-                        file._index = index;
-                        file.$state = function () {
-                            return data.state();
-                        };
-                        file.$processing = function () {
-                            return data.processing();
-                        };
-                        file.$progress = function () {
-                            return data.progress();
-                        };
-                        file.$response = function () {
-                            return data.response();
-                        };
-                    });
-                    file.$submit = function () {
-                        if (!file.error) {
-                            return data.submit();
-                        }
-                    };
-                    file.$cancel = function () {
-                        return data.abort();
-                    };
-                },
-                $config;
-            $config = this.defaults = {
-                handleResponse: function (e, data) {
-                    var files = data.result && data.result.files;
-                    if (files) {
-                        data.scope.replace(data.files, files);
-                    } else if (data.errorThrown ||
-                            data.textStatus === 'error') {
-                        data.files[0].error = data.errorThrown ||
-                            data.textStatus;
-                    }
-                },
-                add: function (e, data) {
-                    if (e.isDefaultPrevented()) {
-                        return false;
-                    }
-                    var scope = data.scope,
-                        filesCopy = [];
-                    angular.forEach(data.files, function (file) {
-                        filesCopy.push(file);
-                    });
-                    scope.$parent.$applyAsync(function () {
-                        addFileMethods(scope, data);
-                        var method = scope.option('prependFiles') ?
-                                'unshift' : 'push';
-                        Array.prototype[method].apply(scope.queue, data.files);
-                    });
-                    data.process(function () {
-                        return scope.process(data);
-                    }).always(function () {
-                        scope.$parent.$applyAsync(function () {
-                            addFileMethods(scope, data);
-                            scope.replace(filesCopy, data.files);
-                        });
-                    }).then(function () {
-                        if ((scope.option('autoUpload') ||
-                                data.autoUpload) &&
-                                data.autoUpload !== false) {
-                            data.submit();
-                        }
-                    });
-                },
-                done: function (e, data) {
-                    if (e.isDefaultPrevented()) {
-                        return false;
-                    }
-                    var that = this;
-                    data.scope.$apply(function () {
-                        data.handleResponse.call(that, e, data);
-                    });
-                },
-                fail: function (e, data) {
-                    if (e.isDefaultPrevented()) {
-                        return false;
-                    }
-                    var that = this,
-                        scope = data.scope;
-                    if (data.errorThrown === 'abort') {
-                        scope.clear(data.files);
-                        return;
-                    }
-                    scope.$apply(function () {
-                        data.handleResponse.call(that, e, data);
-                    });
-                },
-                stop: scopeEvalAsync,
-                processstart: scopeEvalAsync,
-                processstop: scopeEvalAsync,
-                getNumberOfFiles: function () {
-                    var scope = this.scope;
-                    return scope.queue.length - scope.processing();
-                },
-                dataType: 'json',
-                autoUpload: false
-            };
-            this.$get = [
-                function () {
-                    return {
-                        defaults: $config
-                    };
-                }
-            ];
-        })
-
-        // Format byte numbers to readable presentations:
-        .provider('formatFileSizeFilter', function () {
-            var $config = {
-                // Byte units following the IEC format
-                // http://en.wikipedia.org/wiki/Kilobyte
-                units: [
-                    {size: 1000000000, suffix: ' GB'},
-                    {size: 1000000, suffix: ' MB'},
-                    {size: 1000, suffix: ' KB'}
-                ]
-            };
-            this.defaults = $config;
-            this.$get = function () {
-                return function (bytes) {
-                    if (!angular.isNumber(bytes)) {
-                        return '';
-                    }
-                    var unit = true,
-                        i = 0,
-                        prefix,
-                        suffix;
-                    while (unit) {
-                        unit = $config.units[i];
-                        prefix = unit.prefix || '';
-                        suffix = unit.suffix || '';
-                        if (i === $config.units.length - 1 || bytes >= unit.size) {
-                            return prefix + (bytes / unit.size).toFixed(2) + suffix;
-                        }
-                        i += 1;
-                    }
-                };
-            };
-        })
-
-        // The FileUploadController initializes the fileupload widget and
-        // provides scope methods to control the File Upload functionality:
-        .controller('FileUploadController', [
-            '$scope', '$element', '$attrs', '$window', 'fileUpload','$q',
-            function ($scope, $element, $attrs, $window, fileUpload, $q) {
-                var uploadMethods = {
-                    progress: function () {
-                        return $element.fileupload('progress');
-                    },
-                    active: function () {
-                        return $element.fileupload('active');
-                    },
-                    option: function (option, data) {
-                        if (arguments.length === 1) {
-                            return $element.fileupload('option', option);
-                        }
-                        $element.fileupload('option', option, data);
-                    },
-                    add: function (data) {
-                        return $element.fileupload('add', data);
-                    },
-                    send: function (data) {
-                        return $element.fileupload('send', data);
-                    },
-                    process: function (data) {
-                        return $element.fileupload('process', data);
-                    },
-                    processing: function (data) {
-                        return $element.fileupload('processing', data);
-                    }
-                };
-                $scope.disabled = !$window.jQuery.support.fileInput;
-                $scope.queue = $scope.queue || [];
-                $scope.clear = function (files) {
-                    var queue = this.queue,
-                        i = queue.length,
-                        file = files,
-                        length = 1;
-                    if (angular.isArray(files)) {
-                        file = files[0];
-                        length = files.length;
-                    }
-                    while (i) {
-                        i -= 1;
-                        if (queue[i] === file) {
-                            return queue.splice(i, length);
-                        }
-                    }
-                };
-                $scope.replace = function (oldFiles, newFiles) {
-                    var queue = this.queue,
-                        file = oldFiles[0],
-                        i,
-                        j;
-                    for (i = 0; i < queue.length; i += 1) {
-                        if (queue[i] === file) {
-                            for (j = 0; j < newFiles.length; j += 1) {
-                                queue[i + j] = newFiles[j];
-                            }
-                            return;
-                        }
-                    }
-                };
-                $scope.applyOnQueue = function (method) {
-                    var list = this.queue.slice(0),
-                        i,
-                        file,
-                        promises = [];
-                    for (i = 0; i < list.length; i += 1) {
-                        file = list[i];
-                        if (file[method]) {
-                            promises.push(file[method]());
-                        }
-                    }
-                    return $q.all(promises);
-                };
-                $scope.submit = function () {
-                    return this.applyOnQueue('$submit');
-                };
-                $scope.cancel = function () {
-                    return this.applyOnQueue('$cancel');
-                };
-                // Add upload methods to the scope:
-                angular.extend($scope, uploadMethods);
-                // The fileupload widget will initialize with
-                // the options provided via "data-"-parameters,
-                // as well as those given via options object:
-                $element.fileupload(angular.extend(
-                    {scope: $scope},
-                    fileUpload.defaults
-                )).on('fileuploadadd', function (e, data) {
-                    data.scope = $scope;
-                }).on('fileuploadfail', function (e, data) {
-                    if (data.errorThrown === 'abort') {
-                        return;
-                    }
-                    if (data.dataType &&
-                            data.dataType.indexOf('json') === data.dataType.length - 4) {
-                        try {
-                            data.result = angular.fromJson(data.jqXHR.responseText);
-                        } catch (ignore) {}
-                    }
-                }).on([
-                    'fileuploadadd',
-                    'fileuploadsubmit',
-                    'fileuploadsend',
-                    'fileuploaddone',
-                    'fileuploadfail',
-                    'fileuploadalways',
-                    'fileuploadprogress',
-                    'fileuploadprogressall',
-                    'fileuploadstart',
-                    'fileuploadstop',
-                    'fileuploadchange',
-                    'fileuploadpaste',
-                    'fileuploaddrop',
-                    'fileuploaddragover',
-                    'fileuploadchunkbeforesend',
-                    'fileuploadchunksend',
-                    'fileuploadchunkdone',
-                    'fileuploadchunkfail',
-                    'fileuploadchunkalways',
-                    'fileuploadprocessstart',
-                    'fileuploadprocess',
-                    'fileuploadprocessdone',
-                    'fileuploadprocessfail',
-                    'fileuploadprocessalways',
-                    'fileuploadprocessstop'
-                ].join(' '), function (e, data) {
-                    $scope.$parent.$applyAsync(function () {
-                        if ($scope.$emit(e.type, data).defaultPrevented) {
-                            e.preventDefault();
-                        }
-                    });
-                }).on('remove', function () {
-                    // Remove upload methods from the scope,
-                    // when the widget is removed:
-                    var method;
-                    for (method in uploadMethods) {
-                        if (uploadMethods.hasOwnProperty(method)) {
-                            delete $scope[method];
-                        }
-                    }
-                });
-                // Observe option changes:
-                $scope.$watch(
-                    $attrs.fileUpload,
-                    function (newOptions) {
-                        if (newOptions) {
-                            $element.fileupload('option', newOptions);
-                        }
-                    }
-                );
-            }
-        ])
-
-        // Provide File Upload progress feedback:
-        .controller('FileUploadProgressController', [
-            '$scope', '$attrs', '$parse',
-            function ($scope, $attrs, $parse) {
-                var fn = $parse($attrs.fileUploadProgress),
-                    update = function () {
-                        var progress = fn($scope);
-                        if (!progress || !progress.total) {
-                            return;
-                        }
-                        $scope.num = Math.floor(
-                            progress.loaded / progress.total * 100
-                        );
-                    };
-                update();
-                $scope.$watch(
-                    $attrs.fileUploadProgress + '.loaded',
-                    function (newValue, oldValue) {
-                        if (newValue !== oldValue) {
-                            update();
-                        }
-                    }
-                );
-            }
-        ])
-
-        // Display File Upload previews:
-        .controller('FileUploadPreviewController', [
-            '$scope', '$element', '$attrs',
-            function ($scope, $element, $attrs) {
-                $scope.$watch(
-                    $attrs.fileUploadPreview + '.preview',
-                    function (preview) {
-                        $element.empty();
-                        if (preview) {
-                            $element.append(preview);
-                        }
-                    }
-                );
-            }
-        ])
-
-        .directive('fileUpload', function () {
-            return {
-                controller: 'FileUploadController',
-                scope: true
-            };
-        })
-
-        .directive('fileUploadProgress', function () {
-            return {
-                controller: 'FileUploadProgressController',
-                scope: true
-            };
-        })
-
-        .directive('fileUploadPreview', function () {
-            return {
-                controller: 'FileUploadPreviewController'
-            };
-        })
-
-        // Enhance the HTML5 download attribute to
-        // allow drag&drop of files to the desktop:
-        .directive('download', function () {
-            return function (scope, elm) {
-                elm.on('dragstart', function (e) {
-                    try {
-                        e.originalEvent.dataTransfer.setData(
-                            'DownloadURL',
-                            [
-                                'application/octet-stream',
-                                elm.prop('download'),
-                                elm.prop('href')
-                            ].join(':')
-                        );
-                    } catch (ignore) {}
-                });
-            };
-        });
-
-}));
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-audio.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-audio.js
index a25377619..2992213b9 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-audio.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-audio.js
@@ -9,105 +9,93 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* jshint nomen:false */
-/* global define, require, window, document */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            'load-image',
-            './jquery.fileupload-process'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('blueimp-load-image/js/load-image'),
-            require('./jquery.fileupload-process')
-        );
-    } else {
-        // Browser globals:
-        factory(
-            window.jQuery,
-            window.loadImage
-        );
-    }
-}(function ($, loadImage) {
-    'use strict';
-
-    // Prepend to the default processQueue:
-    $.blueimp.fileupload.prototype.options.processQueue.unshift(
-        {
-            action: 'loadAudio',
-            // Use the action as prefix for the "@" options:
-            prefix: true,
-            fileTypes: '@',
-            maxFileSize: '@',
-            disabled: '@disableAudioPreview'
-        },
-        {
-            action: 'setAudio',
-            name: '@audioPreviewName',
-            disabled: '@disableAudioPreview'
-        }
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery', 'load-image', './jquery.fileupload-process'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(
+      require('jquery'),
+      require('blueimp-load-image/js/load-image'),
+      require('./jquery.fileupload-process')
     );
+  } else {
+    // Browser globals:
+    factory(window.jQuery, window.loadImage);
+  }
+})(function($, loadImage) {
+  'use strict';
 
-    // The File Upload Audio Preview plugin extends the fileupload widget
-    // with audio preview functionality:
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
-
-        options: {
-            // The regular expression for the types of audio files to load,
-            // matched against the file type:
-            loadAudioFileTypes: /^audio\/.*$/
-        },
-
-        _audioElement: document.createElement('audio'),
-
-        processActions: {
+  // Prepend to the default processQueue:
+  $.blueimp.fileupload.prototype.options.processQueue.unshift(
+    {
+      action: 'loadAudio',
+      // Use the action as prefix for the "@" options:
+      prefix: true,
+      fileTypes: '@',
+      maxFileSize: '@',
+      disabled: '@disableAudioPreview'
+    },
+    {
+      action: 'setAudio',
+      name: '@audioPreviewName',
+      disabled: '@disableAudioPreview'
+    }
+  );
 
-            // Loads the audio file given via data.files and data.index
-            // as audio element if the browser supports playing it.
-            // Accepts the options fileTypes (regular expression)
-            // and maxFileSize (integer) to limit the files to load:
-            loadAudio: function (data, options) {
-                if (options.disabled) {
-                    return data;
-                }
-                var file = data.files[data.index],
-                    url,
-                    audio;
-                if (this._audioElement.canPlayType &&
-                        this._audioElement.canPlayType(file.type) &&
-                        ($.type(options.maxFileSize) !== 'number' ||
-                            file.size <= options.maxFileSize) &&
-                        (!options.fileTypes ||
-                            options.fileTypes.test(file.type))) {
-                    url = loadImage.createObjectURL(file);
-                    if (url) {
-                        audio = this._audioElement.cloneNode(false);
-                        audio.src = url;
-                        audio.controls = true;
-                        data.audio = audio;
-                        return data;
-                    }
-                }
-                return data;
-            },
+  // The File Upload Audio Preview plugin extends the fileupload widget
+  // with audio preview functionality:
+  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+    options: {
+      // The regular expression for the types of audio files to load,
+      // matched against the file type:
+      loadAudioFileTypes: /^audio\/.*$/
+    },
 
-            // Sets the audio element as a property of the file object:
-            setAudio: function (data, options) {
-                if (data.audio && !options.disabled) {
-                    data.files[data.index][options.name || 'preview'] = data.audio;
-                }
-                return data;
-            }
+    _audioElement: document.createElement('audio'),
 
+    processActions: {
+      // Loads the audio file given via data.files and data.index
+      // as audio element if the browser supports playing it.
+      // Accepts the options fileTypes (regular expression)
+      // and maxFileSize (integer) to limit the files to load:
+      loadAudio: function(data, options) {
+        if (options.disabled) {
+          return data;
         }
+        var file = data.files[data.index],
+          url,
+          audio;
+        if (
+          this._audioElement.canPlayType &&
+          this._audioElement.canPlayType(file.type) &&
+          ($.type(options.maxFileSize) !== 'number' ||
+            file.size <= options.maxFileSize) &&
+          (!options.fileTypes || options.fileTypes.test(file.type))
+        ) {
+          url = loadImage.createObjectURL(file);
+          if (url) {
+            audio = this._audioElement.cloneNode(false);
+            audio.src = url;
+            audio.controls = true;
+            data.audio = audio;
+            return data;
+          }
+        }
+        return data;
+      },
 
-    });
-
-}));
+      // Sets the audio element as a property of the file object:
+      setAudio: function(data, options) {
+        if (data.audio && !options.disabled) {
+          data.files[data.index][options.name || 'preview'] = data.audio;
+        }
+        return data;
+      }
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js
index 65fc6d7b8..8e9b46215 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js
@@ -9,318 +9,331 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* jshint nomen:false */
-/* global define, require, window, Blob */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            'load-image',
-            'load-image-meta',
-            'load-image-scale',
-            'load-image-exif',
-            'canvas-to-blob',
-            './jquery.fileupload-process'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('blueimp-load-image/js/load-image'),
-            require('blueimp-load-image/js/load-image-meta'),
-            require('blueimp-load-image/js/load-image-scale'),
-            require('blueimp-load-image/js/load-image-exif'),
-            require('blueimp-canvas-to-blob'),
-            require('./jquery.fileupload-process')
-        );
-    } else {
-        // Browser globals:
-        factory(
-            window.jQuery,
-            window.loadImage
-        );
-    }
-}(function ($, loadImage) {
-    'use strict';
-
-    // Prepend to the default processQueue:
-    $.blueimp.fileupload.prototype.options.processQueue.unshift(
-        {
-            action: 'loadImageMetaData',
-            disableImageHead: '@',
-            disableExif: '@',
-            disableExifThumbnail: '@',
-            disableExifSub: '@',
-            disableExifGps: '@',
-            disabled: '@disableImageMetaDataLoad'
-        },
-        {
-            action: 'loadImage',
-            // Use the action as prefix for the "@" options:
-            prefix: true,
-            fileTypes: '@',
-            maxFileSize: '@',
-            noRevoke: '@',
-            disabled: '@disableImageLoad'
-        },
-        {
-            action: 'resizeImage',
-            // Use "image" as prefix for the "@" options:
-            prefix: 'image',
-            maxWidth: '@',
-            maxHeight: '@',
-            minWidth: '@',
-            minHeight: '@',
-            crop: '@',
-            orientation: '@',
-            forceResize: '@',
-            disabled: '@disableImageResize'
-        },
-        {
-            action: 'saveImage',
-            quality: '@imageQuality',
-            type: '@imageType',
-            disabled: '@disableImageResize'
-        },
-        {
-            action: 'saveImageMetaData',
-            disabled: '@disableImageMetaDataSave'
-        },
-        {
-            action: 'resizeImage',
-            // Use "preview" as prefix for the "@" options:
-            prefix: 'preview',
-            maxWidth: '@',
-            maxHeight: '@',
-            minWidth: '@',
-            minHeight: '@',
-            crop: '@',
-            orientation: '@',
-            thumbnail: '@',
-            canvas: '@',
-            disabled: '@disableImagePreview'
-        },
-        {
-            action: 'setImage',
-            name: '@imagePreviewName',
-            disabled: '@disableImagePreview'
-        },
-        {
-            action: 'deleteImageReferences',
-            disabled: '@disableImageReferencesDeletion'
-        }
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define([
+      'jquery',
+      'load-image',
+      'load-image-meta',
+      'load-image-scale',
+      'load-image-exif',
+      'canvas-to-blob',
+      './jquery.fileupload-process'
+    ], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(
+      require('jquery'),
+      require('blueimp-load-image/js/load-image'),
+      require('blueimp-load-image/js/load-image-meta'),
+      require('blueimp-load-image/js/load-image-scale'),
+      require('blueimp-load-image/js/load-image-exif'),
+      require('blueimp-canvas-to-blob'),
+      require('./jquery.fileupload-process')
     );
+  } else {
+    // Browser globals:
+    factory(window.jQuery, window.loadImage);
+  }
+})(function($, loadImage) {
+  'use strict';
 
-    // The File Upload Resize plugin extends the fileupload widget
-    // with image resize functionality:
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
-
-        options: {
-            // The regular expression for the types of images to load:
-            // matched against the file type:
-            loadImageFileTypes: /^image\/(gif|jpeg|png|svg\+xml)$/,
-            // The maximum file size of images to load:
-            loadImageMaxFileSize: 10000000, // 10MB
-            // The maximum width of resized images:
-            imageMaxWidth: 1920,
-            // The maximum height of resized images:
-            imageMaxHeight: 1080,
-            // Defines the image orientation (1-8) or takes the orientation
-            // value from Exif data if set to true:
-            imageOrientation: false,
-            // Define if resized images should be cropped or only scaled:
-            imageCrop: false,
-            // Disable the resize image functionality by default:
-            disableImageResize: true,
-            // The maximum width of the preview images:
-            previewMaxWidth: 80,
-            // The maximum height of the preview images:
-            previewMaxHeight: 80,
-            // Defines the preview orientation (1-8) or takes the orientation
-            // value from Exif data if set to true:
-            previewOrientation: true,
-            // Create the preview using the Exif data thumbnail:
-            previewThumbnail: true,
-            // Define if preview images should be cropped or only scaled:
-            previewCrop: false,
-            // Define if preview images should be resized as canvas elements:
-            previewCanvas: true
-        },
-
-        processActions: {
-
-            // Loads the image given via data.files and data.index
-            // as img element, if the browser supports the File API.
-            // Accepts the options fileTypes (regular expression)
-            // and maxFileSize (integer) to limit the files to load:
-            loadImage: function (data, options) {
-                if (options.disabled) {
-                    return data;
-                }
-                var that = this,
-                    file = data.files[data.index],
-                    dfd = $.Deferred();
-                if (($.type(options.maxFileSize) === 'number' &&
-                            file.size > options.maxFileSize) ||
-                        (options.fileTypes &&
-                            !options.fileTypes.test(file.type)) ||
-                        !loadImage(
-                            file,
-                            function (img) {
-                                if (img.src) {
-                                    data.img = img;
-                                }
-                                dfd.resolveWith(that, [data]);
-                            },
-                            options
-                        )) {
-                    return data;
-                }
-                return dfd.promise();
-            },
-
-            // Resizes the image given as data.canvas or data.img
-            // and updates data.canvas or data.img with the resized image.
-            // Also stores the resized image as preview property.
-            // Accepts the options maxWidth, maxHeight, minWidth,
-            // minHeight, canvas and crop:
-            resizeImage: function (data, options) {
-                if (options.disabled || !(data.canvas || data.img)) {
-                    return data;
-                }
-                options = $.extend({canvas: true}, options);
-                var that = this,
-                    dfd = $.Deferred(),
-                    img = (options.canvas && data.canvas) || data.img,
-                    resolve = function (newImg) {
-                        if (newImg && (newImg.width !== img.width ||
-                                newImg.height !== img.height ||
-                                options.forceResize)) {
-                            data[newImg.getContext ? 'canvas' : 'img'] = newImg;
-                        }
-                        data.preview = newImg;
-                        dfd.resolveWith(that, [data]);
-                    },
-                    thumbnail;
-                if (data.exif) {
-                    if (options.orientation === true) {
-                        options.orientation = data.exif.get('Orientation');
-                    }
-                    if (options.thumbnail) {
-                        thumbnail = data.exif.get('Thumbnail');
-                        if (thumbnail) {
-                            loadImage(thumbnail, resolve, options);
-                            return dfd.promise();
-                        }
-                    }
-                    // Prevent orienting the same image twice:
-                    if (data.orientation) {
-                        delete options.orientation;
-                    } else {
-                        data.orientation = options.orientation;
-                    }
-                }
-                if (img) {
-                    resolve(loadImage.scale(img, options));
-                    return dfd.promise();
-                }
-                return data;
-            },
+  // Prepend to the default processQueue:
+  $.blueimp.fileupload.prototype.options.processQueue.unshift(
+    {
+      action: 'loadImageMetaData',
+      disableImageHead: '@',
+      disableExif: '@',
+      disableExifThumbnail: '@',
+      disableExifSub: '@',
+      disableExifGps: '@',
+      disabled: '@disableImageMetaDataLoad'
+    },
+    {
+      action: 'loadImage',
+      // Use the action as prefix for the "@" options:
+      prefix: true,
+      fileTypes: '@',
+      maxFileSize: '@',
+      noRevoke: '@',
+      disabled: '@disableImageLoad'
+    },
+    {
+      action: 'resizeImage',
+      // Use "image" as prefix for the "@" options:
+      prefix: 'image',
+      maxWidth: '@',
+      maxHeight: '@',
+      minWidth: '@',
+      minHeight: '@',
+      crop: '@',
+      orientation: '@',
+      forceResize: '@',
+      disabled: '@disableImageResize'
+    },
+    {
+      action: 'saveImage',
+      quality: '@imageQuality',
+      type: '@imageType',
+      disabled: '@disableImageResize'
+    },
+    {
+      action: 'saveImageMetaData',
+      disabled: '@disableImageMetaDataSave'
+    },
+    {
+      action: 'resizeImage',
+      // Use "preview" as prefix for the "@" options:
+      prefix: 'preview',
+      maxWidth: '@',
+      maxHeight: '@',
+      minWidth: '@',
+      minHeight: '@',
+      crop: '@',
+      orientation: '@',
+      thumbnail: '@',
+      canvas: '@',
+      disabled: '@disableImagePreview'
+    },
+    {
+      action: 'setImage',
+      name: '@imagePreviewName',
+      disabled: '@disableImagePreview'
+    },
+    {
+      action: 'deleteImageReferences',
+      disabled: '@disableImageReferencesDeletion'
+    }
+  );
 
-            // Saves the processed image given as data.canvas
-            // inplace at data.index of data.files:
-            saveImage: function (data, options) {
-                if (!data.canvas || options.disabled) {
-                    return data;
-                }
-                var that = this,
-                    file = data.files[data.index],
-                    dfd = $.Deferred();
-                if (data.canvas.toBlob) {
-                    data.canvas.toBlob(
-                        function (blob) {
-                            if (!blob.name) {
-                                if (file.type === blob.type) {
-                                    blob.name = file.name;
-                                } else if (file.name) {
-                                    blob.name = file.name.replace(
-                                        /\.\w+$/,
-                                        '.' + blob.type.substr(6)
-                                    );
-                                }
-                            }
-                            // Don't restore invalid meta data:
-                            if (file.type !== blob.type) {
-                                delete data.imageHead;
-                            }
-                            // Store the created blob at the position
-                            // of the original file in the files list:
-                            data.files[data.index] = blob;
-                            dfd.resolveWith(that, [data]);
-                        },
-                        options.type || file.type,
-                        options.quality
-                    );
-                } else {
-                    return data;
-                }
-                return dfd.promise();
-            },
+  // The File Upload Resize plugin extends the fileupload widget
+  // with image resize functionality:
+  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+    options: {
+      // The regular expression for the types of images to load:
+      // matched against the file type:
+      loadImageFileTypes: /^image\/(gif|jpeg|png|svg\+xml)$/,
+      // The maximum file size of images to load:
+      loadImageMaxFileSize: 10000000, // 10MB
+      // The maximum width of resized images:
+      imageMaxWidth: 1920,
+      // The maximum height of resized images:
+      imageMaxHeight: 1080,
+      // Defines the image orientation (1-8) or takes the orientation
+      // value from Exif data if set to true:
+      imageOrientation: false,
+      // Define if resized images should be cropped or only scaled:
+      imageCrop: false,
+      // Disable the resize image functionality by default:
+      disableImageResize: true,
+      // The maximum width of the preview images:
+      previewMaxWidth: 80,
+      // The maximum height of the preview images:
+      previewMaxHeight: 80,
+      // Defines the preview orientation (1-8) or takes the orientation
+      // value from Exif data if set to true:
+      previewOrientation: true,
+      // Create the preview using the Exif data thumbnail:
+      previewThumbnail: true,
+      // Define if preview images should be cropped or only scaled:
+      previewCrop: false,
+      // Define if preview images should be resized as canvas elements:
+      previewCanvas: true
+    },
 
-            loadImageMetaData: function (data, options) {
-                if (options.disabled) {
-                    return data;
-                }
-                var that = this,
-                    dfd = $.Deferred();
-                loadImage.parseMetaData(data.files[data.index], function (result) {
-                    $.extend(data, result);
-                    dfd.resolveWith(that, [data]);
-                }, options);
-                return dfd.promise();
+    processActions: {
+      // Loads the image given via data.files and data.index
+      // as img element, if the browser supports the File API.
+      // Accepts the options fileTypes (regular expression)
+      // and maxFileSize (integer) to limit the files to load:
+      loadImage: function(data, options) {
+        if (options.disabled) {
+          return data;
+        }
+        var that = this,
+          file = data.files[data.index],
+          // eslint-disable-next-line new-cap
+          dfd = $.Deferred();
+        if (
+          ($.type(options.maxFileSize) === 'number' &&
+            file.size > options.maxFileSize) ||
+          (options.fileTypes && !options.fileTypes.test(file.type)) ||
+          !loadImage(
+            file,
+            function(img) {
+              if (img.src) {
+                data.img = img;
+              }
+              dfd.resolveWith(that, [data]);
             },
+            options
+          )
+        ) {
+          return data;
+        }
+        return dfd.promise();
+      },
 
-            saveImageMetaData: function (data, options) {
-                if (!(data.imageHead && data.canvas &&
-                        data.canvas.toBlob && !options.disabled)) {
-                    return data;
-                }
-                var file = data.files[data.index],
-                    blob = new Blob([
-                        data.imageHead,
-                        // Resized images always have a head size of 20 bytes,
-                        // including the JPEG marker and a minimal JFIF header:
-                        this._blobSlice.call(file, 20)
-                    ], {type: file.type});
-                blob.name = file.name;
-                data.files[data.index] = blob;
-                return data;
-            },
+      // Resizes the image given as data.canvas or data.img
+      // and updates data.canvas or data.img with the resized image.
+      // Also stores the resized image as preview property.
+      // Accepts the options maxWidth, maxHeight, minWidth,
+      // minHeight, canvas and crop:
+      resizeImage: function(data, options) {
+        if (options.disabled || !(data.canvas || data.img)) {
+          return data;
+        }
+        // eslint-disable-next-line no-param-reassign
+        options = $.extend({ canvas: true }, options);
+        var that = this,
+          // eslint-disable-next-line new-cap
+          dfd = $.Deferred(),
+          img = (options.canvas && data.canvas) || data.img,
+          resolve = function(newImg) {
+            if (
+              newImg &&
+              (newImg.width !== img.width ||
+                newImg.height !== img.height ||
+                options.forceResize)
+            ) {
+              data[newImg.getContext ? 'canvas' : 'img'] = newImg;
+            }
+            data.preview = newImg;
+            dfd.resolveWith(that, [data]);
+          },
+          thumbnail;
+        if (data.exif) {
+          if (options.orientation === true) {
+            options.orientation = data.exif.get('Orientation');
+          }
+          if (options.thumbnail) {
+            thumbnail = data.exif.get('Thumbnail');
+            if (thumbnail) {
+              loadImage(thumbnail, resolve, options);
+              return dfd.promise();
+            }
+          }
+          // Prevent orienting the same image twice:
+          if (data.orientation) {
+            delete options.orientation;
+          } else {
+            data.orientation = options.orientation;
+          }
+        }
+        if (img) {
+          resolve(loadImage.scale(img, options));
+          return dfd.promise();
+        }
+        return data;
+      },
 
-            // Sets the resized version of the image as a property of the
-            // file object, must be called after "saveImage":
-            setImage: function (data, options) {
-                if (data.preview && !options.disabled) {
-                    data.files[data.index][options.name || 'preview'] = data.preview;
+      // Saves the processed image given as data.canvas
+      // inplace at data.index of data.files:
+      saveImage: function(data, options) {
+        if (!data.canvas || options.disabled) {
+          return data;
+        }
+        var that = this,
+          file = data.files[data.index],
+          // eslint-disable-next-line new-cap
+          dfd = $.Deferred();
+        if (data.canvas.toBlob) {
+          data.canvas.toBlob(
+            function(blob) {
+              if (!blob.name) {
+                if (file.type === blob.type) {
+                  blob.name = file.name;
+                } else if (file.name) {
+                  blob.name = file.name.replace(
+                    /\.\w+$/,
+                    '.' + blob.type.substr(6)
+                  );
                 }
-                return data;
+              }
+              // Don't restore invalid meta data:
+              if (file.type !== blob.type) {
+                delete data.imageHead;
+              }
+              // Store the created blob at the position
+              // of the original file in the files list:
+              data.files[data.index] = blob;
+              dfd.resolveWith(that, [data]);
             },
+            options.type || file.type,
+            options.quality
+          );
+        } else {
+          return data;
+        }
+        return dfd.promise();
+      },
 
-            deleteImageReferences: function (data, options) {
-                if (!options.disabled) {
-                    delete data.img;
-                    delete data.canvas;
-                    delete data.preview;
-                    delete data.imageHead;
-                }
-                return data;
-            }
+      loadImageMetaData: function(data, options) {
+        if (options.disabled) {
+          return data;
+        }
+        var that = this,
+          // eslint-disable-next-line new-cap
+          dfd = $.Deferred();
+        loadImage.parseMetaData(
+          data.files[data.index],
+          function(result) {
+            $.extend(data, result);
+            dfd.resolveWith(that, [data]);
+          },
+          options
+        );
+        return dfd.promise();
+      },
 
+      saveImageMetaData: function(data, options) {
+        if (
+          !(
+            data.imageHead &&
+            data.canvas &&
+            data.canvas.toBlob &&
+            !options.disabled
+          )
+        ) {
+          return data;
         }
+        var file = data.files[data.index],
+          blob = new Blob(
+            [
+              data.imageHead,
+              // Resized images always have a head size of 20 bytes,
+              // including the JPEG marker and a minimal JFIF header:
+              this._blobSlice.call(file, 20)
+            ],
+            { type: file.type }
+          );
+        blob.name = file.name;
+        data.files[data.index] = blob;
+        return data;
+      },
 
-    });
+      // Sets the resized version of the image as a property of the
+      // file object, must be called after "saveImage":
+      setImage: function(data, options) {
+        if (data.preview && !options.disabled) {
+          data.files[data.index][options.name || 'preview'] = data.preview;
+        }
+        return data;
+      },
 
-}));
+      deleteImageReferences: function(data, options) {
+        if (!options.disabled) {
+          delete data.img;
+          delete data.canvas;
+          delete data.preview;
+          delete data.imageHead;
+        }
+        return data;
+      }
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-jquery-ui.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-jquery-ui.js
deleted file mode 100644
index 7b136b379..000000000
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-jquery-ui.js
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * jQuery File Upload jQuery UI Plugin
- * https://github.com/blueimp/jQuery-File-Upload
- *
- * Copyright 2013, Sebastian Tschan
- * https://blueimp.net
- *
- * Licensed under the MIT license:
- * https://opensource.org/licenses/MIT
- */
-
-/* jshint nomen:false */
-/* global define, require, window */
-
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            './jquery.fileupload-ui'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('./jquery.fileupload-ui')
-        );
-    } else {
-        // Browser globals:
-        factory(window.jQuery);
-    }
-}(function ($) {
-    'use strict';
-
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
-
-        options: {
-            processdone: function (e, data) {
-                data.context.find('.start').button('enable');
-            },
-            progress: function (e, data) {
-                if (data.context) {
-                    data.context.find('.progress').progressbar(
-                        'option',
-                        'value',
-                        parseInt(data.loaded / data.total * 100, 10)
-                    );
-                }
-            },
-            progressall: function (e, data) {
-                var $this = $(this);
-                $this.find('.fileupload-progress')
-                    .find('.progress').progressbar(
-                        'option',
-                        'value',
-                        parseInt(data.loaded / data.total * 100, 10)
-                    ).end()
-                    .find('.progress-extended').each(function () {
-                        $(this).html(
-                            ($this.data('blueimp-fileupload') ||
-                                    $this.data('fileupload'))
-                                ._renderExtendedProgress(data)
-                        );
-                    });
-            }
-        },
-
-        _renderUpload: function (func, files) {
-            var node = this._super(func, files),
-                showIconText = $(window).width() > 480;
-            node.find('.progress').empty().progressbar();
-            node.find('.start').button({
-                icons: {primary: 'ui-icon-circle-arrow-e'},
-                text: showIconText
-            });
-            node.find('.cancel').button({
-                icons: {primary: 'ui-icon-cancel'},
-                text: showIconText
-            });
-            if (node.hasClass('fade')) {
-                node.hide();
-            }
-            return node;
-        },
-
-        _renderDownload: function (func, files) {
-            var node = this._super(func, files),
-                showIconText = $(window).width() > 480;
-            node.find('.delete').button({
-                icons: {primary: 'ui-icon-trash'},
-                text: showIconText
-            });
-            if (node.hasClass('fade')) {
-                node.hide();
-            }
-            return node;
-        },
-
-        _startHandler: function (e) {
-            $(e.currentTarget).button('disable');
-            this._super(e);
-        },
-
-        _transition: function (node) {
-            var deferred = $.Deferred();
-            if (node.hasClass('fade')) {
-                node.fadeToggle(
-                    this.options.transitionDuration,
-                    this.options.transitionEasing,
-                    function () {
-                        deferred.resolveWith(node);
-                    }
-                );
-            } else {
-                deferred.resolveWith(node);
-            }
-            return deferred;
-        },
-
-        _create: function () {
-            this._super();
-            this.element
-                .find('.fileupload-buttonbar')
-                .find('.fileinput-button').each(function () {
-                    var input = $(this).find('input:file').detach();
-                    $(this)
-                        .button({icons: {primary: 'ui-icon-plusthick'}})
-                        .append(input);
-                })
-                .end().find('.start')
-                .button({icons: {primary: 'ui-icon-circle-arrow-e'}})
-                .end().find('.cancel')
-                .button({icons: {primary: 'ui-icon-cancel'}})
-                .end().find('.delete')
-                .button({icons: {primary: 'ui-icon-trash'}})
-                .end().find('.progress').progressbar();
-        },
-
-        _destroy: function () {
-            this.element
-                .find('.fileupload-buttonbar')
-                .find('.fileinput-button').each(function () {
-                    var input = $(this).find('input:file').detach();
-                    $(this)
-                        .button('destroy')
-                        .append(input);
-                })
-                .end().find('.start')
-                .button('destroy')
-                .end().find('.cancel')
-                .button('destroy')
-                .end().find('.delete')
-                .button('destroy')
-                .end().find('.progress').progressbar('destroy');
-            this._super();
-        }
-
-    });
-
-}));
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-process.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-process.js
index 638f0d26b..54d216913 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-process.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-process.js
@@ -9,170 +9,167 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* jshint nomen:false */
-/* global define, require, window */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            './jquery.fileupload'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('./jquery.fileupload')
-        );
-    } else {
-        // Browser globals:
-        factory(
-            window.jQuery
-        );
-    }
-}(function ($) {
-    'use strict';
-
-    var originalAdd = $.blueimp.fileupload.prototype.options.add;
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery', './jquery.fileupload'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(require('jquery'), require('./jquery.fileupload'));
+  } else {
+    // Browser globals:
+    factory(window.jQuery);
+  }
+})(function($) {
+  'use strict';
 
-    // The File Upload Processing plugin extends the fileupload widget
-    // with file processing functionality:
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+  var originalAdd = $.blueimp.fileupload.prototype.options.add;
 
-        options: {
-            // The list of processing actions:
-            processQueue: [
-                /*
+  // The File Upload Processing plugin extends the fileupload widget
+  // with file processing functionality:
+  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+    options: {
+      // The list of processing actions:
+      processQueue: [
+        /*
                 {
                     action: 'log',
                     type: 'debug'
                 }
                 */
-            ],
-            add: function (e, data) {
-                var $this = $(this);
-                data.process(function () {
-                    return $this.fileupload('process', data);
-                });
-                originalAdd.call(this, e, data);
-            }
-        },
+      ],
+      add: function(e, data) {
+        var $this = $(this);
+        data.process(function() {
+          return $this.fileupload('process', data);
+        });
+        originalAdd.call(this, e, data);
+      }
+    },
 
-        processActions: {
-            /*
+    processActions: {
+      /*
             log: function (data, options) {
                 console[options.type](
                     'Processing "' + data.files[data.index].name + '"'
                 );
             }
             */
-        },
-
-        _processFile: function (data, originalData) {
-            var that = this,
-                dfd = $.Deferred().resolveWith(that, [data]),
-                chain = dfd.promise();
-            this._trigger('process', null, data);
-            $.each(data.processQueue, function (i, settings) {
-                var func = function (data) {
-                    if (originalData.errorThrown) {
-                        return $.Deferred()
-                                .rejectWith(that, [originalData]).promise();
-                    }
-                    return that.processActions[settings.action].call(
-                        that,
-                        data,
-                        settings
-                    );
-                };
-                chain = chain.then(func, settings.always && func);
-            });
-            chain
-                .done(function () {
-                    that._trigger('processdone', null, data);
-                    that._trigger('processalways', null, data);
-                })
-                .fail(function () {
-                    that._trigger('processfail', null, data);
-                    that._trigger('processalways', null, data);
-                });
-            return chain;
-        },
-
-        // Replaces the settings of each processQueue item that
-        // are strings starting with an "@", using the remaining
-        // substring as key for the option map,
-        // e.g. "@autoUpload" is replaced with options.autoUpload:
-        _transformProcessQueue: function (options) {
-            var processQueue = [];
-            $.each(options.processQueue, function () {
-                var settings = {},
-                    action = this.action,
-                    prefix = this.prefix === true ? action : this.prefix;
-                $.each(this, function (key, value) {
-                    if ($.type(value) === 'string' &&
-                            value.charAt(0) === '@') {
-                        settings[key] = options[
-                            value.slice(1) || (prefix ? prefix +
-                                key.charAt(0).toUpperCase() + key.slice(1) : key)
-                        ];
-                    } else {
-                        settings[key] = value;
-                    }
+    },
 
-                });
-                processQueue.push(settings);
-            });
-            options.processQueue = processQueue;
-        },
+    _processFile: function(data, originalData) {
+      var that = this,
+        // eslint-disable-next-line new-cap
+        dfd = $.Deferred().resolveWith(that, [data]),
+        chain = dfd.promise();
+      this._trigger('process', null, data);
+      $.each(data.processQueue, function(i, settings) {
+        var func = function(data) {
+          if (originalData.errorThrown) {
+            // eslint-disable-next-line new-cap
+            return $.Deferred()
+              .rejectWith(that, [originalData])
+              .promise();
+          }
+          return that.processActions[settings.action].call(
+            that,
+            data,
+            settings
+          );
+        };
+        chain = chain.then(func, settings.always && func);
+      });
+      chain
+        .done(function() {
+          that._trigger('processdone', null, data);
+          that._trigger('processalways', null, data);
+        })
+        .fail(function() {
+          that._trigger('processfail', null, data);
+          that._trigger('processalways', null, data);
+        });
+      return chain;
+    },
 
-        // Returns the number of files currently in the processsing queue:
-        processing: function () {
-            return this._processing;
-        },
+    // Replaces the settings of each processQueue item that
+    // are strings starting with an "@", using the remaining
+    // substring as key for the option map,
+    // e.g. "@autoUpload" is replaced with options.autoUpload:
+    _transformProcessQueue: function(options) {
+      var processQueue = [];
+      $.each(options.processQueue, function() {
+        var settings = {},
+          action = this.action,
+          prefix = this.prefix === true ? action : this.prefix;
+        $.each(this, function(key, value) {
+          if ($.type(value) === 'string' && value.charAt(0) === '@') {
+            settings[key] =
+              options[
+                value.slice(1) ||
+                  (prefix
+                    ? prefix + key.charAt(0).toUpperCase() + key.slice(1)
+                    : key)
+              ];
+          } else {
+            settings[key] = value;
+          }
+        });
+        processQueue.push(settings);
+      });
+      options.processQueue = processQueue;
+    },
 
-        // Processes the files given as files property of the data parameter,
-        // returns a Promise object that allows to bind callbacks:
-        process: function (data) {
-            var that = this,
-                options = $.extend({}, this.options, data);
-            if (options.processQueue && options.processQueue.length) {
-                this._transformProcessQueue(options);
-                if (this._processing === 0) {
-                    this._trigger('processstart');
-                }
-                $.each(data.files, function (index) {
-                    var opts = index ? $.extend({}, options) : options,
-                        func = function () {
-                            if (data.errorThrown) {
-                                return $.Deferred()
-                                        .rejectWith(that, [data]).promise();
-                            }
-                            return that._processFile(opts, data);
-                        };
-                    opts.index = index;
-                    that._processing += 1;
-                    that._processingQueue = that._processingQueue.then(func, func)
-                        .always(function () {
-                            that._processing -= 1;
-                            if (that._processing === 0) {
-                                that._trigger('processstop');
-                            }
-                        });
-                });
-            }
-            return this._processingQueue;
-        },
+    // Returns the number of files currently in the processsing queue:
+    processing: function() {
+      return this._processing;
+    },
 
-        _create: function () {
-            this._super();
-            this._processing = 0;
-            this._processingQueue = $.Deferred().resolveWith(this)
-                .promise();
+    // Processes the files given as files property of the data parameter,
+    // returns a Promise object that allows to bind callbacks:
+    process: function(data) {
+      var that = this,
+        options = $.extend({}, this.options, data);
+      if (options.processQueue && options.processQueue.length) {
+        this._transformProcessQueue(options);
+        if (this._processing === 0) {
+          this._trigger('processstart');
         }
+        $.each(data.files, function(index) {
+          var opts = index ? $.extend({}, options) : options,
+            func = function() {
+              if (data.errorThrown) {
+                // eslint-disable-next-line new-cap
+                return $.Deferred()
+                  .rejectWith(that, [data])
+                  .promise();
+              }
+              return that._processFile(opts, data);
+            };
+          opts.index = index;
+          that._processing += 1;
+          that._processingQueue = that._processingQueue
+            .then(func, func)
+            .always(function() {
+              that._processing -= 1;
+              if (that._processing === 0) {
+                that._trigger('processstop');
+              }
+            });
+        });
+      }
+      return this._processingQueue;
+    },
 
-    });
-
-}));
+    _create: function() {
+      this._super();
+      this._processing = 0;
+      // eslint-disable-next-line new-cap
+      this._processingQueue = $.Deferred()
+        .resolveWith(this)
+        .promise();
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-ui.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-ui.js
index 5058084b4..562708c6b 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-ui.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-ui.js
@@ -9,706 +9,753 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* jshint nomen:false */
-/* global define, require, window */
-
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            'blueimp-tmpl',
-            './jquery.fileupload-image',
-            './jquery.fileupload-audio',
-            './jquery.fileupload-video',
-            './jquery.fileupload-validate'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('blueimp-tmpl'),
-            require('./jquery.fileupload-image'),
-            require('./jquery.fileupload-audio'),
-            require('./jquery.fileupload-video'),
-            require('./jquery.fileupload-validate')
-        );
-    } else {
-        // Browser globals:
-        factory(
-            window.jQuery,
-            window.tmpl
-        );
-    }
-}(function ($, tmpl) {
-    'use strict';
-
-    $.blueimp.fileupload.prototype._specialOptions.push(
-        'filesContainer',
-        'uploadTemplateId',
-        'downloadTemplateId'
+/* global define, require */
+
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define([
+      'jquery',
+      'blueimp-tmpl',
+      './jquery.fileupload-image',
+      './jquery.fileupload-audio',
+      './jquery.fileupload-video',
+      './jquery.fileupload-validate'
+    ], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(
+      require('jquery'),
+      require('blueimp-tmpl'),
+      require('./jquery.fileupload-image'),
+      require('./jquery.fileupload-audio'),
+      require('./jquery.fileupload-video'),
+      require('./jquery.fileupload-validate')
     );
-
-    // The UI version extends the file upload widget
-    // and adds complete user interface interaction:
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
-
-        options: {
-            // By default, files added to the widget are uploaded as soon
-            // as the user clicks on the start buttons. To enable automatic
-            // uploads, set the following option to true:
-            autoUpload: false,
-            // The ID of the upload template:
-            uploadTemplateId: 'template-upload',
-            // The ID of the download template:
-            downloadTemplateId: 'template-download',
-            // The container for the list of files. If undefined, it is set to
-            // an element with class "files" inside of the widget element:
-            filesContainer: undefined,
-            // By default, files are appended to the files container.
-            // Set the following option to true, to prepend files instead:
-            prependFiles: false,
-            // The expected data type of the upload response, sets the dataType
-            // option of the $.ajax upload requests:
-            dataType: 'json',
-
-            // Error and info messages:
-            messages: {
-                unknownError: 'Unknown error'
-            },
-
-            // Function returning the current number of files,
-            // used by the maxNumberOfFiles validation:
-            getNumberOfFiles: function () {
-                return this.filesContainer.children()
-                    .not('.processing').length;
-            },
-
-            // Callback to retrieve the list of files from the server response:
-            getFilesFromResponse: function (data) {
-                if (data.result && $.isArray(data.result.files)) {
-                    return data.result.files;
-                }
-                return [];
-            },
-
-            // The add callback is invoked as soon as files are added to the fileupload
-            // widget (via file input selection, drag & drop or add API call).
-            // See the basic file upload widget for more information:
-            add: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var $this = $(this),
-                    that = $this.data('blueimp-fileupload') ||
-                        $this.data('fileupload'),
-                    options = that.options;
-                data.context = that._renderUpload(data.files)
-                    .data('data', data)
-                    .addClass('processing');
-                options.filesContainer[
-                    options.prependFiles ? 'prepend' : 'append'
-                ](data.context);
-                that._forceReflow(data.context);
-                that._transition(data.context);
-                data.process(function () {
-                    return $this.fileupload('process', data);
-                }).always(function () {
-                    data.context.each(function (index) {
-                        $(this).find('.size').text(
-                            that._formatFileSize(data.files[index].size)
-                        );
-                    }).removeClass('processing');
-                    that._renderPreviews(data);
-                }).done(function () {
-                    data.context.find('.start').prop('disabled', false);
-                    if ((that._trigger('added', e, data) !== false) &&
-                            (options.autoUpload || data.autoUpload) &&
-                            data.autoUpload !== false) {
-                        data.submit();
-                    }
-                }).fail(function () {
-                    if (data.files.error) {
-                        data.context.each(function (index) {
-                            var error = data.files[index].error;
-                            if (error) {
-                                $(this).find('.error').text(error);
-                            }
-                        });
-                    }
-                });
-            },
-            // Callback for the start of each file upload request:
-            send: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var that = $(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload');
-                if (data.context && data.dataType &&
-                        data.dataType.substr(0, 6) === 'iframe') {
-                    // Iframe Transport does not support progress events.
-                    // In lack of an indeterminate progress bar, we set
-                    // the progress to 100%, showing the full animated bar:
-                    data.context
-                        .find('.progress').addClass(
-                            !$.support.transition && 'progress-animated'
-                        )
-                        .attr('aria-valuenow', 100)
-                        .children().first().css(
-                            'width',
-                            '100%'
-                        );
-                }
-                return that._trigger('sent', e, data);
-            },
-            // Callback for successful uploads:
-            done: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var that = $(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload'),
-                    getFilesFromResponse = data.getFilesFromResponse ||
-                        that.options.getFilesFromResponse,
-                    files = getFilesFromResponse(data),
-                    template,
-                    deferred;
-                if (data.context) {
-                    data.context.each(function (index) {
-                        var file = files[index] ||
-                                {error: 'Empty file upload result'};
-                        deferred = that._addFinishedDeferreds();
-                        that._transition($(this)).done(
-                            function () {
-                                var node = $(this);
-                                template = that._renderDownload([file])
-                                    .replaceAll(node);
-                                that._forceReflow(template);
-                                that._transition(template).done(
-                                    function () {
-                                        data.context = $(this);
-                                        that._trigger('completed', e, data);
-                                        that._trigger('finished', e, data);
-                                        deferred.resolve();
-                                    }
-                                );
-                            }
-                        );
-                    });
-                } else {
-                    template = that._renderDownload(files)[
-                        that.options.prependFiles ? 'prependTo' : 'appendTo'
-                    ](that.options.filesContainer);
-                    that._forceReflow(template);
-                    deferred = that._addFinishedDeferreds();
-                    that._transition(template).done(
-                        function () {
-                            data.context = $(this);
-                            that._trigger('completed', e, data);
-                            that._trigger('finished', e, data);
-                            deferred.resolve();
-                        }
-                    );
-                }
-            },
-            // Callback for failed (abort or error) uploads:
-            fail: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var that = $(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload'),
-                    template,
-                    deferred;
-                if (data.context) {
-                    data.context.each(function (index) {
-                        if (data.errorThrown !== 'abort') {
-                            var file = data.files[index];
-                            file.error = file.error || data.errorThrown ||
-                                data.i18n('unknownError');
-                            deferred = that._addFinishedDeferreds();
-                            that._transition($(this)).done(
-                                function () {
-                                    var node = $(this);
-                                    template = that._renderDownload([file])
-                                        .replaceAll(node);
-                                    that._forceReflow(template);
-                                    that._transition(template).done(
-                                        function () {
-                                            data.context = $(this);
-                                            that._trigger('failed', e, data);
-                                            that._trigger('finished', e, data);
-                                            deferred.resolve();
-                                        }
-                                    );
-                                }
-                            );
-                        } else {
-                            deferred = that._addFinishedDeferreds();
-                            that._transition($(this)).done(
-                                function () {
-                                    $(this).remove();
-                                    that._trigger('failed', e, data);
-                                    that._trigger('finished', e, data);
-                                    deferred.resolve();
-                                }
-                            );
-                        }
-                    });
-                } else if (data.errorThrown !== 'abort') {
-                    data.context = that._renderUpload(data.files)[
-                        that.options.prependFiles ? 'prependTo' : 'appendTo'
-                    ](that.options.filesContainer)
-                        .data('data', data);
-                    that._forceReflow(data.context);
-                    deferred = that._addFinishedDeferreds();
-                    that._transition(data.context).done(
-                        function () {
-                            data.context = $(this);
-                            that._trigger('failed', e, data);
-                            that._trigger('finished', e, data);
-                            deferred.resolve();
-                        }
-                    );
-                } else {
-                    that._trigger('failed', e, data);
-                    that._trigger('finished', e, data);
-                    that._addFinishedDeferreds().resolve();
-                }
-            },
-            // Callback for upload progress events:
-            progress: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var progress = Math.floor(data.loaded / data.total * 100);
-                if (data.context) {
-                    data.context.each(function () {
-                        $(this).find('.progress')
-                            .attr('aria-valuenow', progress)
-                            .children().first().css(
-                                'width',
-                                progress + '%'
-                            );
-                    });
-                }
-            },
-            // Callback for global upload progress events:
-            progressall: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var $this = $(this),
-                    progress = Math.floor(data.loaded / data.total * 100),
-                    globalProgressNode = $this.find('.fileupload-progress'),
-                    extendedProgressNode = globalProgressNode
-                        .find('.progress-extended');
-                if (extendedProgressNode.length) {
-                    extendedProgressNode.html(
-                        ($this.data('blueimp-fileupload') || $this.data('fileupload'))
-                            ._renderExtendedProgress(data)
-                    );
-                }
-                globalProgressNode
-                    .find('.progress')
-                    .attr('aria-valuenow', progress)
-                    .children().first().css(
-                        'width',
-                        progress + '%'
-                    );
-            },
-            // Callback for uploads start, equivalent to the global ajaxStart event:
-            start: function (e) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var that = $(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload');
-                that._resetFinishedDeferreds();
-                that._transition($(this).find('.fileupload-progress')).done(
-                    function () {
-                        that._trigger('started', e);
-                    }
-                );
-            },
-            // Callback for uploads stop, equivalent to the global ajaxStop event:
-            stop: function (e) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var that = $(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload'),
-                    deferred = that._addFinishedDeferreds();
-                $.when.apply($, that._getFinishedDeferreds())
-                    .done(function () {
-                        that._trigger('stopped', e);
-                    });
-                that._transition($(this).find('.fileupload-progress')).done(
-                    function () {
-                        $(this).find('.progress')
-                            .attr('aria-valuenow', '0')
-                            .children().first().css('width', '0%');
-                        $(this).find('.progress-extended').html('&nbsp;');
-                        deferred.resolve();
-                    }
-                );
-            },
-            processstart: function (e) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                $(this).addClass('fileupload-processing');
-            },
-            processstop: function (e) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                $(this).removeClass('fileupload-processing');
-            },
-            // Callback for file deletion:
-            destroy: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                var that = $(this).data('blueimp-fileupload') ||
-                        $(this).data('fileupload'),
-                    removeNode = function () {
-                        that._transition(data.context).done(
-                            function () {
-                                $(this).remove();
-                                that._trigger('destroyed', e, data);
-                            }
-                        );
-                    };
-                if (data.url) {
-                    data.dataType = data.dataType || that.options.dataType;
-                    $.ajax(data).done(removeNode).fail(function () {
-                        that._trigger('destroyfailed', e, data);
-                    });
-                } else {
-                    removeNode();
-                }
-            }
-        },
-
-        _resetFinishedDeferreds: function () {
-            this._finishedUploads = [];
-        },
-
-        _addFinishedDeferreds: function (deferred) {
-            if (!deferred) {
-                deferred = $.Deferred();
-            }
-            this._finishedUploads.push(deferred);
-            return deferred;
-        },
-
-        _getFinishedDeferreds: function () {
-            return this._finishedUploads;
-        },
-
-        // Link handler, that allows to download files
-        // by drag & drop of the links to the desktop:
-        _enableDragToDesktop: function () {
-            var link = $(this),
-                url = link.prop('href'),
-                name = link.prop('download'),
-                type = 'application/octet-stream';
-            link.bind('dragstart', function (e) {
-                try {
-                    e.originalEvent.dataTransfer.setData(
-                        'DownloadURL',
-                        [type, name, url].join(':')
-                    );
-                } catch (ignore) {}
-            });
-        },
-
-        _formatFileSize: function (bytes) {
-            if (typeof bytes !== 'number') {
-                return '';
-            }
-            if (bytes >= 1000000000) {
-                return (bytes / 1000000000).toFixed(2) + ' GB';
-            }
-            if (bytes >= 1000000) {
-                return (bytes / 1000000).toFixed(2) + ' MB';
-            }
-            return (bytes / 1000).toFixed(2) + ' KB';
-        },
-
-        _formatBitrate: function (bits) {
-            if (typeof bits !== 'number') {
-                return '';
-            }
-            if (bits >= 1000000000) {
-                return (bits / 1000000000).toFixed(2) + ' Gbit/s';
-            }
-            if (bits >= 1000000) {
-                return (bits / 1000000).toFixed(2) + ' Mbit/s';
-            }
-            if (bits >= 1000) {
-                return (bits / 1000).toFixed(2) + ' kbit/s';
-            }
-            return bits.toFixed(2) + ' bit/s';
-        },
-
-        _formatTime: function (seconds) {
-            var date = new Date(seconds * 1000),
-                days = Math.floor(seconds / 86400);
-            days = days ? days + 'd ' : '';
-            return days +
-                ('0' + date.getUTCHours()).slice(-2) + ':' +
-                ('0' + date.getUTCMinutes()).slice(-2) + ':' +
-                ('0' + date.getUTCSeconds()).slice(-2);
-        },
-
-        _formatPercentage: function (floatValue) {
-            return (floatValue * 100).toFixed(2) + ' %';
-        },
-
-        _renderExtendedProgress: function (data) {
-            return this._formatBitrate(data.bitrate) + ' | ' +
-                this._formatTime(
-                    (data.total - data.loaded) * 8 / data.bitrate
-                ) + ' | ' +
-                this._formatPercentage(
-                    data.loaded / data.total
-                ) + ' | ' +
-                this._formatFileSize(data.loaded) + ' / ' +
-                this._formatFileSize(data.total);
-        },
-
-        _renderTemplate: function (func, files) {
-            if (!func) {
-                return $();
+  } else {
+    // Browser globals:
+    factory(window.jQuery, window.tmpl);
+  }
+})(function($, tmpl) {
+  'use strict';
+
+  $.blueimp.fileupload.prototype._specialOptions.push(
+    'filesContainer',
+    'uploadTemplateId',
+    'downloadTemplateId'
+  );
+
+  // The UI version extends the file upload widget
+  // and adds complete user interface interaction:
+  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+    options: {
+      // By default, files added to the widget are uploaded as soon
+      // as the user clicks on the start buttons. To enable automatic
+      // uploads, set the following option to true:
+      autoUpload: false,
+      // The ID of the upload template:
+      uploadTemplateId: 'template-upload',
+      // The ID of the download template:
+      downloadTemplateId: 'template-download',
+      // The container for the list of files. If undefined, it is set to
+      // an element with class "files" inside of the widget element:
+      filesContainer: undefined,
+      // By default, files are appended to the files container.
+      // Set the following option to true, to prepend files instead:
+      prependFiles: false,
+      // The expected data type of the upload response, sets the dataType
+      // option of the $.ajax upload requests:
+      dataType: 'json',
+
+      // Error and info messages:
+      messages: {
+        unknownError: 'Unknown error'
+      },
+
+      // Function returning the current number of files,
+      // used by the maxNumberOfFiles validation:
+      getNumberOfFiles: function() {
+        return this.filesContainer.children().not('.processing').length;
+      },
+
+      // Callback to retrieve the list of files from the server response:
+      getFilesFromResponse: function(data) {
+        if (data.result && $.isArray(data.result.files)) {
+          return data.result.files;
+        }
+        return [];
+      },
+
+      // The add callback is invoked as soon as files are added to the fileupload
+      // widget (via file input selection, drag & drop or add API call).
+      // See the basic file upload widget for more information:
+      add: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var $this = $(this),
+          that = $this.data('blueimp-fileupload') || $this.data('fileupload'),
+          options = that.options;
+        data.context = that
+          ._renderUpload(data.files)
+          .data('data', data)
+          .addClass('processing');
+        options.filesContainer[options.prependFiles ? 'prepend' : 'append'](
+          data.context
+        );
+        that._forceReflow(data.context);
+        that._transition(data.context);
+        data
+          .process(function() {
+            return $this.fileupload('process', data);
+          })
+          .always(function() {
+            data.context
+              .each(function(index) {
+                $(this)
+                  .find('.size')
+                  .text(that._formatFileSize(data.files[index].size));
+              })
+              .removeClass('processing');
+            that._renderPreviews(data);
+          })
+          .done(function() {
+            data.context.find('.edit,.start').prop('disabled', false);
+            if (
+              that._trigger('added', e, data) !== false &&
+              (options.autoUpload || data.autoUpload) &&
+              data.autoUpload !== false
+            ) {
+              data.submit();
             }
-            var result = func({
-                files: files,
-                formatFileSize: this._formatFileSize,
-                options: this.options
-            });
-            if (result instanceof $) {
-                return result;
+          })
+          .fail(function() {
+            if (data.files.error) {
+              data.context.each(function(index) {
+                var error = data.files[index].error;
+                if (error) {
+                  $(this)
+                    .find('.error')
+                    .text(error);
+                }
+              });
             }
-            return $(this.options.templatesContainer).html(result).children();
-        },
-
-        _renderPreviews: function (data) {
-            data.context.find('.preview').each(function (index, elm) {
-                $(elm).append(data.files[index].preview);
+          });
+      },
+      // Callback for the start of each file upload request:
+      send: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var that =
+          $(this).data('blueimp-fileupload') || $(this).data('fileupload');
+        if (
+          data.context &&
+          data.dataType &&
+          data.dataType.substr(0, 6) === 'iframe'
+        ) {
+          // Iframe Transport does not support progress events.
+          // In lack of an indeterminate progress bar, we set
+          // the progress to 100%, showing the full animated bar:
+          data.context
+            .find('.progress')
+            .addClass(!$.support.transition && 'progress-animated')
+            .attr('aria-valuenow', 100)
+            .children()
+            .first()
+            .css('width', '100%');
+        }
+        return that._trigger('sent', e, data);
+      },
+      // Callback for successful uploads:
+      done: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var that =
+            $(this).data('blueimp-fileupload') || $(this).data('fileupload'),
+          getFilesFromResponse =
+            data.getFilesFromResponse || that.options.getFilesFromResponse,
+          files = getFilesFromResponse(data),
+          template,
+          deferred;
+        if (data.context) {
+          data.context.each(function(index) {
+            var file = files[index] || { error: 'Empty file upload result' };
+            deferred = that._addFinishedDeferreds();
+            that._transition($(this)).done(function() {
+              var node = $(this);
+              template = that._renderDownload([file]).replaceAll(node);
+              that._forceReflow(template);
+              that._transition(template).done(function() {
+                data.context = $(this);
+                that._trigger('completed', e, data);
+                that._trigger('finished', e, data);
+                deferred.resolve();
+              });
             });
-        },
-
-        _renderUpload: function (files) {
-            return this._renderTemplate(
-                this.options.uploadTemplate,
-                files
+          });
+        } else {
+          template = that
+            ._renderDownload(files)
+            [that.options.prependFiles ? 'prependTo' : 'appendTo'](
+              that.options.filesContainer
             );
-        },
-
-        _renderDownload: function (files) {
-            return this._renderTemplate(
-                this.options.downloadTemplate,
-                files
-            ).find('a[download]').each(this._enableDragToDesktop).end();
-        },
-
-        _startHandler: function (e) {
-            e.preventDefault();
-            var button = $(e.currentTarget),
-                template = button.closest('.template-upload'),
-                data = template.data('data');
-            button.prop('disabled', true);
-            if (data && data.submit) {
-                data.submit();
-            }
-        },
-
-        _cancelHandler: function (e) {
-            e.preventDefault();
-            var template = $(e.currentTarget)
-                    .closest('.template-upload,.template-download'),
-                data = template.data('data') || {};
-            data.context = data.context || template;
-            if (data.abort) {
-                data.abort();
-            } else {
-                data.errorThrown = 'abort';
-                this._trigger('fail', e, data);
-            }
-        },
-
-        _deleteHandler: function (e) {
-            e.preventDefault();
-            var button = $(e.currentTarget);
-            this._trigger('destroy', e, $.extend({
-                context: button.closest('.template-download'),
-                type: 'DELETE'
-            }, button.data()));
-        },
-
-        _forceReflow: function (node) {
-            return $.support.transition && node.length &&
-                node[0].offsetWidth;
-        },
-
-        _transition: function (node) {
-            var dfd = $.Deferred();
-            if ($.support.transition && node.hasClass('fade') && node.is(':visible')) {
-                node.bind(
-                    $.support.transition.end,
-                    function (e) {
-                        // Make sure we don't respond to other transitions events
-                        // in the container element, e.g. from button elements:
-                        if (e.target === node[0]) {
-                            node.unbind($.support.transition.end);
-                            dfd.resolveWith(node);
-                        }
-                    }
-                ).toggleClass('in');
+          that._forceReflow(template);
+          deferred = that._addFinishedDeferreds();
+          that._transition(template).done(function() {
+            data.context = $(this);
+            that._trigger('completed', e, data);
+            that._trigger('finished', e, data);
+            deferred.resolve();
+          });
+        }
+      },
+      // Callback for failed (abort or error) uploads:
+      fail: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var that =
+            $(this).data('blueimp-fileupload') || $(this).data('fileupload'),
+          template,
+          deferred;
+        if (data.context) {
+          data.context.each(function(index) {
+            if (data.errorThrown !== 'abort') {
+              var file = data.files[index];
+              file.error =
+                file.error || data.errorThrown || data.i18n('unknownError');
+              deferred = that._addFinishedDeferreds();
+              that._transition($(this)).done(function() {
+                var node = $(this);
+                template = that._renderDownload([file]).replaceAll(node);
+                that._forceReflow(template);
+                that._transition(template).done(function() {
+                  data.context = $(this);
+                  that._trigger('failed', e, data);
+                  that._trigger('finished', e, data);
+                  deferred.resolve();
+                });
+              });
             } else {
-                node.toggleClass('in');
-                dfd.resolveWith(node);
+              deferred = that._addFinishedDeferreds();
+              that._transition($(this)).done(function() {
+                $(this).remove();
+                that._trigger('failed', e, data);
+                that._trigger('finished', e, data);
+                deferred.resolve();
+              });
             }
-            return dfd;
-        },
-
-        _initButtonBarEventHandlers: function () {
-            var fileUploadButtonBar = this.element.find('.fileupload-buttonbar'),
-                filesList = this.options.filesContainer;
-            this._on(fileUploadButtonBar.find('.start'), {
-                click: function (e) {
-                    e.preventDefault();
-                    filesList.find('.start').click();
-                }
-            });
-            this._on(fileUploadButtonBar.find('.cancel'), {
-                click: function (e) {
-                    e.preventDefault();
-                    filesList.find('.cancel').click();
-                }
-            });
-            this._on(fileUploadButtonBar.find('.delete'), {
-                click: function (e) {
-                    e.preventDefault();
-                    filesList.find('.toggle:checked')
-                        .closest('.template-download')
-                        .find('.delete').click();
-                    fileUploadButtonBar.find('.toggle')
-                        .prop('checked', false);
-                }
+          });
+        } else if (data.errorThrown !== 'abort') {
+          data.context = that
+            ._renderUpload(data.files)
+            [that.options.prependFiles ? 'prependTo' : 'appendTo'](
+              that.options.filesContainer
+            )
+            .data('data', data);
+          that._forceReflow(data.context);
+          deferred = that._addFinishedDeferreds();
+          that._transition(data.context).done(function() {
+            data.context = $(this);
+            that._trigger('failed', e, data);
+            that._trigger('finished', e, data);
+            deferred.resolve();
+          });
+        } else {
+          that._trigger('failed', e, data);
+          that._trigger('finished', e, data);
+          that._addFinishedDeferreds().resolve();
+        }
+      },
+      // Callback for upload progress events:
+      progress: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var progress = Math.floor((data.loaded / data.total) * 100);
+        if (data.context) {
+          data.context.each(function() {
+            $(this)
+              .find('.progress')
+              .attr('aria-valuenow', progress)
+              .children()
+              .first()
+              .css('width', progress + '%');
+          });
+        }
+      },
+      // Callback for global upload progress events:
+      progressall: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var $this = $(this),
+          progress = Math.floor((data.loaded / data.total) * 100),
+          globalProgressNode = $this.find('.fileupload-progress'),
+          extendedProgressNode = globalProgressNode.find('.progress-extended');
+        if (extendedProgressNode.length) {
+          extendedProgressNode.html(
+            (
+              $this.data('blueimp-fileupload') || $this.data('fileupload')
+            )._renderExtendedProgress(data)
+          );
+        }
+        globalProgressNode
+          .find('.progress')
+          .attr('aria-valuenow', progress)
+          .children()
+          .first()
+          .css('width', progress + '%');
+      },
+      // Callback for uploads start, equivalent to the global ajaxStart event:
+      start: function(e) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var that =
+          $(this).data('blueimp-fileupload') || $(this).data('fileupload');
+        that._resetFinishedDeferreds();
+        that._transition($(this).find('.fileupload-progress')).done(function() {
+          that._trigger('started', e);
+        });
+      },
+      // Callback for uploads stop, equivalent to the global ajaxStop event:
+      stop: function(e) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var that =
+            $(this).data('blueimp-fileupload') || $(this).data('fileupload'),
+          deferred = that._addFinishedDeferreds();
+        $.when.apply($, that._getFinishedDeferreds()).done(function() {
+          that._trigger('stopped', e);
+        });
+        that._transition($(this).find('.fileupload-progress')).done(function() {
+          $(this)
+            .find('.progress')
+            .attr('aria-valuenow', '0')
+            .children()
+            .first()
+            .css('width', '0%');
+          $(this)
+            .find('.progress-extended')
+            .html('&nbsp;');
+          deferred.resolve();
+        });
+      },
+      processstart: function(e) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        $(this).addClass('fileupload-processing');
+      },
+      processstop: function(e) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        $(this).removeClass('fileupload-processing');
+      },
+      // Callback for file deletion:
+      destroy: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        var that =
+            $(this).data('blueimp-fileupload') || $(this).data('fileupload'),
+          removeNode = function() {
+            that._transition(data.context).done(function() {
+              $(this).remove();
+              that._trigger('destroyed', e, data);
             });
-            this._on(fileUploadButtonBar.find('.toggle'), {
-                change: function (e) {
-                    filesList.find('.toggle').prop(
-                        'checked',
-                        $(e.currentTarget).is(':checked')
-                    );
-                }
+          };
+        if (data.url) {
+          data.dataType = data.dataType || that.options.dataType;
+          $.ajax(data)
+            .done(removeNode)
+            .fail(function() {
+              that._trigger('destroyfailed', e, data);
             });
-        },
-
-        _destroyButtonBarEventHandlers: function () {
-            this._off(
-                this.element.find('.fileupload-buttonbar')
-                    .find('.start, .cancel, .delete'),
-                'click'
-            );
-            this._off(
-                this.element.find('.fileupload-buttonbar .toggle'),
-                'change.'
-            );
-        },
-
-        _initEventHandlers: function () {
-            this._super();
-            this._on(this.options.filesContainer, {
-                'click .start': this._startHandler,
-                'click .cancel': this._cancelHandler,
-                'click .delete': this._deleteHandler
-            });
-            this._initButtonBarEventHandlers();
-        },
-
-        _destroyEventHandlers: function () {
-            this._destroyButtonBarEventHandlers();
-            this._off(this.options.filesContainer, 'click');
-            this._super();
-        },
-
-        _enableFileInputButton: function () {
-            this.element.find('.fileinput-button input')
-                .prop('disabled', false)
-                .parent().removeClass('disabled');
-        },
-
-        _disableFileInputButton: function () {
-            this.element.find('.fileinput-button input')
-                .prop('disabled', true)
-                .parent().addClass('disabled');
-        },
-
-        _initTemplates: function () {
-            var options = this.options;
-            options.templatesContainer = this.document[0].createElement(
-                options.filesContainer.prop('nodeName')
-            );
-            if (tmpl) {
-                if (options.uploadTemplateId) {
-                    options.uploadTemplate = tmpl(options.uploadTemplateId);
-                }
-                if (options.downloadTemplateId) {
-                    options.downloadTemplate = tmpl(options.downloadTemplateId);
-                }
-            }
-        },
-
-        _initFilesContainer: function () {
-            var options = this.options;
-            if (options.filesContainer === undefined) {
-                options.filesContainer = this.element.find('.files');
-            } else if (!(options.filesContainer instanceof $)) {
-                options.filesContainer = $(options.filesContainer);
-            }
-        },
-
-        _initSpecialOptions: function () {
-            this._super();
-            this._initFilesContainer();
-            this._initTemplates();
-        },
-
-        _create: function () {
-            this._super();
-            this._resetFinishedDeferreds();
-            if (!$.support.fileInput) {
-                this._disableFileInputButton();
-            }
-        },
-
-        enable: function () {
-            var wasDisabled = false;
-            if (this.options.disabled) {
-                wasDisabled = true;
-            }
-            this._super();
-            if (wasDisabled) {
-                this.element.find('input, button').prop('disabled', false);
-                this._enableFileInputButton();
-            }
-        },
-
-        disable: function () {
-            if (!this.options.disabled) {
-                this.element.find('input, button').prop('disabled', true);
-                this._disableFileInputButton();
+        } else {
+          removeNode();
+        }
+      }
+    },
+
+    _resetFinishedDeferreds: function() {
+      this._finishedUploads = [];
+    },
+
+    _addFinishedDeferreds: function(deferred) {
+      // eslint-disable-next-line new-cap
+      var promise = deferred || $.Deferred();
+      this._finishedUploads.push(promise);
+      return promise;
+    },
+
+    _getFinishedDeferreds: function() {
+      return this._finishedUploads;
+    },
+
+    // Link handler, that allows to download files
+    // by drag & drop of the links to the desktop:
+    _enableDragToDesktop: function() {
+      var link = $(this),
+        url = link.prop('href'),
+        name = link.prop('download'),
+        type = 'application/octet-stream';
+      link.bind('dragstart', function(e) {
+        try {
+          e.originalEvent.dataTransfer.setData(
+            'DownloadURL',
+            [type, name, url].join(':')
+          );
+        } catch (ignore) {
+          // Ignore exceptions
+        }
+      });
+    },
+
+    _formatFileSize: function(bytes) {
+      if (typeof bytes !== 'number') {
+        return '';
+      }
+      if (bytes >= 1000000000) {
+        return (bytes / 1000000000).toFixed(2) + ' GB';
+      }
+      if (bytes >= 1000000) {
+        return (bytes / 1000000).toFixed(2) + ' MB';
+      }
+      return (bytes / 1000).toFixed(2) + ' KB';
+    },
+
+    _formatBitrate: function(bits) {
+      if (typeof bits !== 'number') {
+        return '';
+      }
+      if (bits >= 1000000000) {
+        return (bits / 1000000000).toFixed(2) + ' Gbit/s';
+      }
+      if (bits >= 1000000) {
+        return (bits / 1000000).toFixed(2) + ' Mbit/s';
+      }
+      if (bits >= 1000) {
+        return (bits / 1000).toFixed(2) + ' kbit/s';
+      }
+      return bits.toFixed(2) + ' bit/s';
+    },
+
+    _formatTime: function(seconds) {
+      var date = new Date(seconds * 1000),
+        days = Math.floor(seconds / 86400);
+      days = days ? days + 'd ' : '';
+      return (
+        days +
+        ('0' + date.getUTCHours()).slice(-2) +
+        ':' +
+        ('0' + date.getUTCMinutes()).slice(-2) +
+        ':' +
+        ('0' + date.getUTCSeconds()).slice(-2)
+      );
+    },
+
+    _formatPercentage: function(floatValue) {
+      return (floatValue * 100).toFixed(2) + ' %';
+    },
+
+    _renderExtendedProgress: function(data) {
+      return (
+        this._formatBitrate(data.bitrate) +
+        ' | ' +
+        this._formatTime(((data.total - data.loaded) * 8) / data.bitrate) +
+        ' | ' +
+        this._formatPercentage(data.loaded / data.total) +
+        ' | ' +
+        this._formatFileSize(data.loaded) +
+        ' / ' +
+        this._formatFileSize(data.total)
+      );
+    },
+
+    _renderTemplate: function(func, files) {
+      if (!func) {
+        return $();
+      }
+      var result = func({
+        files: files,
+        formatFileSize: this._formatFileSize,
+        options: this.options
+      });
+      if (result instanceof $) {
+        return result;
+      }
+      return $(this.options.templatesContainer)
+        .html(result)
+        .children();
+    },
+
+    _renderPreviews: function(data) {
+      data.context.find('.preview').each(function(index, elm) {
+        $(elm)
+          .empty()
+          .append(data.files[index].preview);
+      });
+    },
+
+    _renderUpload: function(files) {
+      return this._renderTemplate(this.options.uploadTemplate, files);
+    },
+
+    _renderDownload: function(files) {
+      return this._renderTemplate(this.options.downloadTemplate, files)
+        .find('a[download]')
+        .each(this._enableDragToDesktop)
+        .end();
+    },
+
+    _editHandler: function(e) {
+      e.preventDefault();
+      if (!this.options.edit) return;
+      var that = this,
+        button = $(e.currentTarget),
+        template = button.closest('.template-upload'),
+        data = template.data('data'),
+        index = button.data().index;
+      this.options.edit(data.files[index]).then(function(file) {
+        if (!file) return;
+        data.files[index] = file;
+        data.context.addClass('processing');
+        template.find('.edit,.start').prop('disabled', true);
+        $(that.element)
+          .fileupload('process', data)
+          .always(function() {
+            template
+              .find('.size')
+              .text(that._formatFileSize(data.files[index].size));
+            data.context.removeClass('processing');
+            that._renderPreviews(data);
+          })
+          .done(function() {
+            template.find('.edit,.start').prop('disabled', false);
+          })
+          .fail(function() {
+            template.find('.edit').prop('disabled', false);
+            var error = data.files[index].error;
+            if (error) {
+              template.find('.error').text(error);
             }
-            this._super();
+          });
+      });
+    },
+
+    _startHandler: function(e) {
+      e.preventDefault();
+      var button = $(e.currentTarget),
+        template = button.closest('.template-upload'),
+        data = template.data('data');
+      button.prop('disabled', true);
+      if (data && data.submit) {
+        data.submit();
+      }
+    },
+
+    _cancelHandler: function(e) {
+      e.preventDefault();
+      var template = $(e.currentTarget).closest(
+          '.template-upload,.template-download'
+        ),
+        data = template.data('data') || {};
+      data.context = data.context || template;
+      if (data.abort) {
+        data.abort();
+      } else {
+        data.errorThrown = 'abort';
+        this._trigger('fail', e, data);
+      }
+    },
+
+    _deleteHandler: function(e) {
+      e.preventDefault();
+      var button = $(e.currentTarget);
+      this._trigger(
+        'destroy',
+        e,
+        $.extend(
+          {
+            context: button.closest('.template-download'),
+            type: 'DELETE'
+          },
+          button.data()
+        )
+      );
+    },
+
+    _forceReflow: function(node) {
+      return $.support.transition && node.length && node[0].offsetWidth;
+    },
+
+    _transition: function(node) {
+      // eslint-disable-next-line new-cap
+      var dfd = $.Deferred();
+      if (
+        $.support.transition &&
+        node.hasClass('fade') &&
+        node.is(':visible')
+      ) {
+        var transitionEndHandler = function(e) {
+          // Make sure we don't respond to other transition events
+          // in the container element, e.g. from button elements:
+          if (e.target === node[0]) {
+            node.unbind($.support.transition.end, transitionEndHandler);
+            dfd.resolveWith(node);
+          }
+        };
+        node
+          .bind($.support.transition.end, transitionEndHandler)
+          .toggleClass('in');
+      } else {
+        node.toggleClass('in');
+        dfd.resolveWith(node);
+      }
+      return dfd;
+    },
+
+    _initButtonBarEventHandlers: function() {
+      var fileUploadButtonBar = this.element.find('.fileupload-buttonbar'),
+        filesList = this.options.filesContainer;
+      this._on(fileUploadButtonBar.find('.start'), {
+        click: function(e) {
+          e.preventDefault();
+          filesList.find('.start').click();
         }
-
-    });
-
-}));
+      });
+      this._on(fileUploadButtonBar.find('.cancel'), {
+        click: function(e) {
+          e.preventDefault();
+          filesList.find('.cancel').click();
+        }
+      });
+      this._on(fileUploadButtonBar.find('.delete'), {
+        click: function(e) {
+          e.preventDefault();
+          filesList
+            .find('.toggle:checked')
+            .closest('.template-download')
+            .find('.delete')
+            .click();
+          fileUploadButtonBar.find('.toggle').prop('checked', false);
+        }
+      });
+      this._on(fileUploadButtonBar.find('.toggle'), {
+        change: function(e) {
+          filesList
+            .find('.toggle')
+            .prop('checked', $(e.currentTarget).is(':checked'));
+        }
+      });
+    },
+
+    _destroyButtonBarEventHandlers: function() {
+      this._off(
+        this.element
+          .find('.fileupload-buttonbar')
+          .find('.start, .cancel, .delete'),
+        'click'
+      );
+      this._off(this.element.find('.fileupload-buttonbar .toggle'), 'change.');
+    },
+
+    _initEventHandlers: function() {
+      this._super();
+      this._on(this.options.filesContainer, {
+        'click .edit': this._editHandler,
+        'click .start': this._startHandler,
+        'click .cancel': this._cancelHandler,
+        'click .delete': this._deleteHandler
+      });
+      this._initButtonBarEventHandlers();
+    },
+
+    _destroyEventHandlers: function() {
+      this._destroyButtonBarEventHandlers();
+      this._off(this.options.filesContainer, 'click');
+      this._super();
+    },
+
+    _enableFileInputButton: function() {
+      this.element
+        .find('.fileinput-button input')
+        .prop('disabled', false)
+        .parent()
+        .removeClass('disabled');
+    },
+
+    _disableFileInputButton: function() {
+      this.element
+        .find('.fileinput-button input')
+        .prop('disabled', true)
+        .parent()
+        .addClass('disabled');
+    },
+
+    _initTemplates: function() {
+      var options = this.options;
+      options.templatesContainer = this.document[0].createElement(
+        options.filesContainer.prop('nodeName')
+      );
+      if (tmpl) {
+        if (options.uploadTemplateId) {
+          options.uploadTemplate = tmpl(options.uploadTemplateId);
+        }
+        if (options.downloadTemplateId) {
+          options.downloadTemplate = tmpl(options.downloadTemplateId);
+        }
+      }
+    },
+
+    _initFilesContainer: function() {
+      var options = this.options;
+      if (options.filesContainer === undefined) {
+        options.filesContainer = this.element.find('.files');
+      } else if (!(options.filesContainer instanceof $)) {
+        options.filesContainer = $(options.filesContainer);
+      }
+    },
+
+    _initSpecialOptions: function() {
+      this._super();
+      this._initFilesContainer();
+      this._initTemplates();
+    },
+
+    _create: function() {
+      this._super();
+      this._resetFinishedDeferreds();
+      if (!$.support.fileInput) {
+        this._disableFileInputButton();
+      }
+    },
+
+    enable: function() {
+      var wasDisabled = false;
+      if (this.options.disabled) {
+        wasDisabled = true;
+      }
+      this._super();
+      if (wasDisabled) {
+        this.element.find('input, button').prop('disabled', false);
+        this._enableFileInputButton();
+      }
+    },
+
+    disable: function() {
+      if (!this.options.disabled) {
+        this.element.find('input, button').prop('disabled', true);
+        this._disableFileInputButton();
+      }
+      this._super();
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-validate.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-validate.js
index eebeb3733..37b380a00 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-validate.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-validate.js
@@ -9,53 +9,42 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define, require, window */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            './jquery.fileupload-process'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('./jquery.fileupload-process')
-        );
-    } else {
-        // Browser globals:
-        factory(
-            window.jQuery
-        );
-    }
-}(function ($) {
-    'use strict';
-
-    // Append to the default processQueue:
-    $.blueimp.fileupload.prototype.options.processQueue.push(
-        {
-            action: 'validate',
-            // Always trigger this action,
-            // even if the previous action was rejected:
-            always: true,
-            // Options taken from the global options map:
-            acceptFileTypes: '@',
-            maxFileSize: '@',
-            minFileSize: '@',
-            maxNumberOfFiles: '@',
-            disabled: '@disableValidation'
-        }
-    );
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery', './jquery.fileupload-process'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(require('jquery'), require('./jquery.fileupload-process'));
+  } else {
+    // Browser globals:
+    factory(window.jQuery);
+  }
+})(function($) {
+  'use strict';
 
-    // The File Upload Validation plugin extends the fileupload widget
-    // with file validation functionality:
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+  // Append to the default processQueue:
+  $.blueimp.fileupload.prototype.options.processQueue.push({
+    action: 'validate',
+    // Always trigger this action,
+    // even if the previous action was rejected:
+    always: true,
+    // Options taken from the global options map:
+    acceptFileTypes: '@',
+    maxFileSize: '@',
+    minFileSize: '@',
+    maxNumberOfFiles: '@',
+    disabled: '@disableValidation'
+  });
 
-        options: {
-            /*
+  // The File Upload Validation plugin extends the fileupload widget
+  // with file validation functionality:
+  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+    options: {
+      /*
             // The regular expression for allowed file types, matches
             // against either file type or file name:
             acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
@@ -67,59 +56,64 @@
             maxNumberOfFiles: 10,
             */
 
-            // Function returning the current number of files,
-            // has to be overriden for maxNumberOfFiles validation:
-            getNumberOfFiles: $.noop,
+      // Function returning the current number of files,
+      // has to be overriden for maxNumberOfFiles validation:
+      getNumberOfFiles: $.noop,
 
-            // Error and info messages:
-            messages: {
-                maxNumberOfFiles: 'Maximum number of files exceeded',
-                acceptFileTypes: 'File type not allowed',
-                maxFileSize: 'File is too large',
-                minFileSize: 'File is too small'
-            }
-        },
-
-        processActions: {
-
-            validate: function (data, options) {
-                if (options.disabled) {
-                    return data;
-                }
-                var dfd = $.Deferred(),
-                    settings = this.options,
-                    file = data.files[data.index],
-                    fileSize;
-                if (options.minFileSize || options.maxFileSize) {
-                    fileSize = file.size;
-                }
-                if ($.type(options.maxNumberOfFiles) === 'number' &&
-                        (settings.getNumberOfFiles() || 0) + data.files.length >
-                            options.maxNumberOfFiles) {
-                    file.error = settings.i18n('maxNumberOfFiles');
-                } else if (options.acceptFileTypes &&
-                        !(options.acceptFileTypes.test(file.type) ||
-                        options.acceptFileTypes.test(file.name))) {
-                    file.error = settings.i18n('acceptFileTypes');
-                } else if (fileSize > options.maxFileSize) {
-                    file.error = settings.i18n('maxFileSize');
-                } else if ($.type(fileSize) === 'number' &&
-                        fileSize < options.minFileSize) {
-                    file.error = settings.i18n('minFileSize');
-                } else {
-                    delete file.error;
-                }
-                if (file.error || data.files.error) {
-                    data.files.error = true;
-                    dfd.rejectWith(this, [data]);
-                } else {
-                    dfd.resolveWith(this, [data]);
-                }
-                return dfd.promise();
-            }
+      // Error and info messages:
+      messages: {
+        maxNumberOfFiles: 'Maximum number of files exceeded',
+        acceptFileTypes: 'File type not allowed',
+        maxFileSize: 'File is too large',
+        minFileSize: 'File is too small'
+      }
+    },
 
+    processActions: {
+      validate: function(data, options) {
+        if (options.disabled) {
+          return data;
         }
-
-    });
-
-}));
+        // eslint-disable-next-line new-cap
+        var dfd = $.Deferred(),
+          settings = this.options,
+          file = data.files[data.index],
+          fileSize;
+        if (options.minFileSize || options.maxFileSize) {
+          fileSize = file.size;
+        }
+        if (
+          $.type(options.maxNumberOfFiles) === 'number' &&
+          (settings.getNumberOfFiles() || 0) + data.files.length >
+            options.maxNumberOfFiles
+        ) {
+          file.error = settings.i18n('maxNumberOfFiles');
+        } else if (
+          options.acceptFileTypes &&
+          !(
+            options.acceptFileTypes.test(file.type) ||
+            options.acceptFileTypes.test(file.name)
+          )
+        ) {
+          file.error = settings.i18n('acceptFileTypes');
+        } else if (fileSize > options.maxFileSize) {
+          file.error = settings.i18n('maxFileSize');
+        } else if (
+          $.type(fileSize) === 'number' &&
+          fileSize < options.minFileSize
+        ) {
+          file.error = settings.i18n('minFileSize');
+        } else {
+          delete file.error;
+        }
+        if (file.error || data.files.error) {
+          data.files.error = true;
+          dfd.rejectWith(this, [data]);
+        } else {
+          dfd.resolveWith(this, [data]);
+        }
+        return dfd.promise();
+      }
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-video.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-video.js
index aedcec2ba..06d5f66cf 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-video.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-video.js
@@ -9,105 +9,93 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* jshint nomen:false */
-/* global define, require, window, document */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            'load-image',
-            './jquery.fileupload-process'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('blueimp-load-image/js/load-image'),
-            require('./jquery.fileupload-process')
-        );
-    } else {
-        // Browser globals:
-        factory(
-            window.jQuery,
-            window.loadImage
-        );
-    }
-}(function ($, loadImage) {
-    'use strict';
-
-    // Prepend to the default processQueue:
-    $.blueimp.fileupload.prototype.options.processQueue.unshift(
-        {
-            action: 'loadVideo',
-            // Use the action as prefix for the "@" options:
-            prefix: true,
-            fileTypes: '@',
-            maxFileSize: '@',
-            disabled: '@disableVideoPreview'
-        },
-        {
-            action: 'setVideo',
-            name: '@videoPreviewName',
-            disabled: '@disableVideoPreview'
-        }
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery', 'load-image', './jquery.fileupload-process'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(
+      require('jquery'),
+      require('blueimp-load-image/js/load-image'),
+      require('./jquery.fileupload-process')
     );
+  } else {
+    // Browser globals:
+    factory(window.jQuery, window.loadImage);
+  }
+})(function($, loadImage) {
+  'use strict';
 
-    // The File Upload Video Preview plugin extends the fileupload widget
-    // with video preview functionality:
-    $.widget('blueimp.fileupload', $.blueimp.fileupload, {
-
-        options: {
-            // The regular expression for the types of video files to load,
-            // matched against the file type:
-            loadVideoFileTypes: /^video\/.*$/
-        },
-
-        _videoElement: document.createElement('video'),
-
-        processActions: {
+  // Prepend to the default processQueue:
+  $.blueimp.fileupload.prototype.options.processQueue.unshift(
+    {
+      action: 'loadVideo',
+      // Use the action as prefix for the "@" options:
+      prefix: true,
+      fileTypes: '@',
+      maxFileSize: '@',
+      disabled: '@disableVideoPreview'
+    },
+    {
+      action: 'setVideo',
+      name: '@videoPreviewName',
+      disabled: '@disableVideoPreview'
+    }
+  );
 
-            // Loads the video file given via data.files and data.index
-            // as video element if the browser supports playing it.
-            // Accepts the options fileTypes (regular expression)
-            // and maxFileSize (integer) to limit the files to load:
-            loadVideo: function (data, options) {
-                if (options.disabled) {
-                    return data;
-                }
-                var file = data.files[data.index],
-                    url,
-                    video;
-                if (this._videoElement.canPlayType &&
-                        this._videoElement.canPlayType(file.type) &&
-                        ($.type(options.maxFileSize) !== 'number' ||
-                            file.size <= options.maxFileSize) &&
-                        (!options.fileTypes ||
-                            options.fileTypes.test(file.type))) {
-                    url = loadImage.createObjectURL(file);
-                    if (url) {
-                        video = this._videoElement.cloneNode(false);
-                        video.src = url;
-                        video.controls = true;
-                        data.video = video;
-                        return data;
-                    }
-                }
-                return data;
-            },
+  // The File Upload Video Preview plugin extends the fileupload widget
+  // with video preview functionality:
+  $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+    options: {
+      // The regular expression for the types of video files to load,
+      // matched against the file type:
+      loadVideoFileTypes: /^video\/.*$/
+    },
 
-            // Sets the video element as a property of the file object:
-            setVideo: function (data, options) {
-                if (data.video && !options.disabled) {
-                    data.files[data.index][options.name || 'preview'] = data.video;
-                }
-                return data;
-            }
+    _videoElement: document.createElement('video'),
 
+    processActions: {
+      // Loads the video file given via data.files and data.index
+      // as video element if the browser supports playing it.
+      // Accepts the options fileTypes (regular expression)
+      // and maxFileSize (integer) to limit the files to load:
+      loadVideo: function(data, options) {
+        if (options.disabled) {
+          return data;
         }
+        var file = data.files[data.index],
+          url,
+          video;
+        if (
+          this._videoElement.canPlayType &&
+          this._videoElement.canPlayType(file.type) &&
+          ($.type(options.maxFileSize) !== 'number' ||
+            file.size <= options.maxFileSize) &&
+          (!options.fileTypes || options.fileTypes.test(file.type))
+        ) {
+          url = loadImage.createObjectURL(file);
+          if (url) {
+            video = this._videoElement.cloneNode(false);
+            video.src = url;
+            video.controls = true;
+            data.video = video;
+            return data;
+          }
+        }
+        return data;
+      },
 
-    });
-
-}));
+      // Sets the video element as a property of the file object:
+      setVideo: function(data, options) {
+        if (data.video && !options.disabled) {
+          data.files[data.index][options.name || 'preview'] = data.video;
+        }
+        return data;
+      }
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload.js
index 53c169e2a..d4d32570c 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload.js
@@ -9,1527 +9,1603 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* jshint nomen:false */
-/* global define, require, window, document, location, Blob, FormData */
-
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define([
-            'jquery',
-            'jquery-ui/ui/widget'
-        ], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(
-            require('jquery'),
-            require('./vendor/jquery.ui.widget')
-        );
-    } else {
-        // Browser globals:
-        factory(window.jQuery);
-    }
-}(function ($) {
-    'use strict';
-
-    // Detect file input support, based on
-    // http://viljamis.com/blog/2012/file-upload-support-on-mobile/
-    $.support.fileInput = !(new RegExp(
-        // Handle devices which give false positives for the feature detection:
-        '(Android (1\\.[0156]|2\\.[01]))' +
-            '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' +
-            '|(w(eb)?OSBrowser)|(webOS)' +
-            '|(Kindle/(1\\.0|2\\.[05]|3\\.0))'
+/* global define, require */
+/* eslint-disable new-cap */
+
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery', 'jquery-ui/ui/widget'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(require('jquery'), require('./vendor/jquery.ui.widget'));
+  } else {
+    // Browser globals:
+    factory(window.jQuery);
+  }
+})(function($) {
+  'use strict';
+
+  // Detect file input support, based on
+  // https://viljamis.com/2012/file-upload-support-on-mobile/
+  $.support.fileInput = !(
+    new RegExp(
+      // Handle devices which give false positives for the feature detection:
+      '(Android (1\\.[0156]|2\\.[01]))' +
+        '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' +
+        '|(w(eb)?OSBrowser)|(webOS)' +
+        '|(Kindle/(1\\.0|2\\.[05]|3\\.0))'
     ).test(window.navigator.userAgent) ||
-        // Feature detection for all other devices:
-        $('<input type="file"/>').prop('disabled'));
-
-    // The FileReader API is not actually used, but works as feature detection,
-    // as some Safari versions (5?) support XHR file uploads via the FormData API,
-    // but not non-multipart XHR file uploads.
-    // window.XMLHttpRequestUpload is not available on IE10, so we check for
-    // window.ProgressEvent instead to detect XHR2 file upload capability:
-    $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader);
-    $.support.xhrFormDataFileUpload = !!window.FormData;
-
-    // Detect support for Blob slicing (required for chunked uploads):
-    $.support.blobSlice = window.Blob && (Blob.prototype.slice ||
-        Blob.prototype.webkitSlice || Blob.prototype.mozSlice);
-
-    // Helper function to create drag handlers for dragover/dragenter/dragleave:
-    function getDragHandler(type) {
-        var isDragOver = type === 'dragover';
-        return function (e) {
-            e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
-            var dataTransfer = e.dataTransfer;
-            if (dataTransfer && $.inArray('Files', dataTransfer.types) !== -1 &&
-                    this._trigger(
-                        type,
-                        $.Event(type, {delegatedEvent: e})
-                    ) !== false) {
-                e.preventDefault();
-                if (isDragOver) {
-                    dataTransfer.dropEffect = 'copy';
-                }
-            }
-        };
-    }
+    // Feature detection for all other devices:
+    $('<input type="file"/>').prop('disabled')
+  );
+
+  // The FileReader API is not actually used, but works as feature detection,
+  // as some Safari versions (5?) support XHR file uploads via the FormData API,
+  // but not non-multipart XHR file uploads.
+  // window.XMLHttpRequestUpload is not available on IE10, so we check for
+  // window.ProgressEvent instead to detect XHR2 file upload capability:
+  $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader);
+  $.support.xhrFormDataFileUpload = !!window.FormData;
+
+  // Detect support for Blob slicing (required for chunked uploads):
+  $.support.blobSlice =
+    window.Blob &&
+    (Blob.prototype.slice ||
+      Blob.prototype.webkitSlice ||
+      Blob.prototype.mozSlice);
+
+  /**
+   * Helper function to create drag handlers for dragover/dragenter/dragleave
+   *
+   * @param {string} type Event type
+   * @returns {Function} Drag handler
+   */
+  function getDragHandler(type) {
+    var isDragOver = type === 'dragover';
+    return function(e) {
+      e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
+      var dataTransfer = e.dataTransfer;
+      if (
+        dataTransfer &&
+        $.inArray('Files', dataTransfer.types) !== -1 &&
+        this._trigger(type, $.Event(type, { delegatedEvent: e })) !== false
+      ) {
+        e.preventDefault();
+        if (isDragOver) {
+          dataTransfer.dropEffect = 'copy';
+        }
+      }
+    };
+  }
+
+  // The fileupload widget listens for change events on file input fields defined
+  // via fileInput setting and paste or drop events of the given dropZone.
+  // In addition to the default jQuery Widget methods, the fileupload widget
+  // exposes the "add" and "send" methods, to add or directly send files using
+  // the fileupload API.
+  // By default, files added via file input selection, paste, drag & drop or
+  // "add" method are uploaded immediately, but it is possible to override
+  // the "add" callback option to queue file uploads.
+  $.widget('blueimp.fileupload', {
+    options: {
+      // The drop target element(s), by the default the complete document.
+      // Set to null to disable drag & drop support:
+      dropZone: $(document),
+      // The paste target element(s), by the default undefined.
+      // Set to a DOM node or jQuery object to enable file pasting:
+      pasteZone: undefined,
+      // The file input field(s), that are listened to for change events.
+      // If undefined, it is set to the file input fields inside
+      // of the widget element on plugin initialization.
+      // Set to null to disable the change listener.
+      fileInput: undefined,
+      // By default, the file input field is replaced with a clone after
+      // each input field change event. This is required for iframe transport
+      // queues and allows change events to be fired for the same file
+      // selection, but can be disabled by setting the following option to false:
+      replaceFileInput: true,
+      // The parameter name for the file form data (the request argument name).
+      // If undefined or empty, the name property of the file input field is
+      // used, or "files[]" if the file input name property is also empty,
+      // can be a string or an array of strings:
+      paramName: undefined,
+      // By default, each file of a selection is uploaded using an individual
+      // request for XHR type uploads. Set to false to upload file
+      // selections in one request each:
+      singleFileUploads: true,
+      // To limit the number of files uploaded with one XHR request,
+      // set the following option to an integer greater than 0:
+      limitMultiFileUploads: undefined,
+      // The following option limits the number of files uploaded with one
+      // XHR request to keep the request size under or equal to the defined
+      // limit in bytes:
+      limitMultiFileUploadSize: undefined,
+      // Multipart file uploads add a number of bytes to each uploaded file,
+      // therefore the following option adds an overhead for each file used
+      // in the limitMultiFileUploadSize configuration:
+      limitMultiFileUploadSizeOverhead: 512,
+      // Set the following option to true to issue all file upload requests
+      // in a sequential order:
+      sequentialUploads: false,
+      // To limit the number of concurrent uploads,
+      // set the following option to an integer greater than 0:
+      limitConcurrentUploads: undefined,
+      // Set the following option to true to force iframe transport uploads:
+      forceIframeTransport: false,
+      // Set the following option to the location of a redirect url on the
+      // origin server, for cross-domain iframe transport uploads:
+      redirect: undefined,
+      // The parameter name for the redirect url, sent as part of the form
+      // data and set to 'redirect' if this option is empty:
+      redirectParamName: undefined,
+      // Set the following option to the location of a postMessage window,
+      // to enable postMessage transport uploads:
+      postMessage: undefined,
+      // By default, XHR file uploads are sent as multipart/form-data.
+      // The iframe transport is always using multipart/form-data.
+      // Set to false to enable non-multipart XHR uploads:
+      multipart: true,
+      // To upload large files in smaller chunks, set the following option
+      // to a preferred maximum chunk size. If set to 0, null or undefined,
+      // or the browser does not support the required Blob API, files will
+      // be uploaded as a whole.
+      maxChunkSize: undefined,
+      // When a non-multipart upload or a chunked multipart upload has been
+      // aborted, this option can be used to resume the upload by setting
+      // it to the size of the already uploaded bytes. This option is most
+      // useful when modifying the options object inside of the "add" or
+      // "send" callbacks, as the options are cloned for each file upload.
+      uploadedBytes: undefined,
+      // By default, failed (abort or error) file uploads are removed from the
+      // global progress calculation. Set the following option to false to
+      // prevent recalculating the global progress data:
+      recalculateProgress: true,
+      // Interval in milliseconds to calculate and trigger progress events:
+      progressInterval: 100,
+      // Interval in milliseconds to calculate progress bitrate:
+      bitrateInterval: 500,
+      // By default, uploads are started automatically when adding files:
+      autoUpload: true,
+      // By default, duplicate file names are expected to be handled on
+      // the server-side. If this is not possible (e.g. when uploading
+      // files directly to Amazon S3), the following option can be set to
+      // an empty object or an object mapping existing filenames, e.g.:
+      // { "image.jpg": true, "image (1).jpg": true }
+      // If it is set, all files will be uploaded with unique filenames,
+      // adding increasing number suffixes if necessary, e.g.:
+      // "image (2).jpg"
+      uniqueFilenames: undefined,
+
+      // Error and info messages:
+      messages: {
+        uploadedBytes: 'Uploaded bytes exceed file size'
+      },
+
+      // Translation function, gets the message key to be translated
+      // and an object with context specific data as arguments:
+      i18n: function(message, context) {
+        // eslint-disable-next-line no-param-reassign
+        message = this.messages[message] || message.toString();
+        if (context) {
+          $.each(context, function(key, value) {
+            // eslint-disable-next-line no-param-reassign
+            message = message.replace('{' + key + '}', value);
+          });
+        }
+        return message;
+      },
+
+      // Additional form data to be sent along with the file uploads can be set
+      // using this option, which accepts an array of objects with name and
+      // value properties, a function returning such an array, a FormData
+      // object (for XHR file uploads), or a simple object.
+      // The form of the first fileInput is given as parameter to the function:
+      formData: function(form) {
+        return form.serializeArray();
+      },
+
+      // The add callback is invoked as soon as files are added to the fileupload
+      // widget (via file input selection, drag & drop, paste or add API call).
+      // If the singleFileUploads option is enabled, this callback will be
+      // called once for each file in the selection for XHR file uploads, else
+      // once for each file selection.
+      //
+      // The upload starts when the submit method is invoked on the data parameter.
+      // The data object contains a files property holding the added files
+      // and allows you to override plugin options as well as define ajax settings.
+      //
+      // Listeners for this callback can also be bound the following way:
+      // .bind('fileuploadadd', func);
+      //
+      // data.submit() returns a Promise object and allows to attach additional
+      // handlers using jQuery's Deferred callbacks:
+      // data.submit().done(func).fail(func).always(func);
+      add: function(e, data) {
+        if (e.isDefaultPrevented()) {
+          return false;
+        }
+        if (
+          data.autoUpload ||
+          (data.autoUpload !== false &&
+            $(this).fileupload('option', 'autoUpload'))
+        ) {
+          data.process().done(function() {
+            data.submit();
+          });
+        }
+      },
 
-    // The fileupload widget listens for change events on file input fields defined
-    // via fileInput setting and paste or drop events of the given dropZone.
-    // In addition to the default jQuery Widget methods, the fileupload widget
-    // exposes the "add" and "send" methods, to add or directly send files using
-    // the fileupload API.
-    // By default, files added via file input selection, paste, drag & drop or
-    // "add" method are uploaded immediately, but it is possible to override
-    // the "add" callback option to queue file uploads.
-    $.widget('blueimp.fileupload', {
-
-        options: {
-            // The drop target element(s), by the default the complete document.
-            // Set to null to disable drag & drop support:
-            dropZone: $(document),
-            // The paste target element(s), by the default undefined.
-            // Set to a DOM node or jQuery object to enable file pasting:
-            pasteZone: undefined,
-            // The file input field(s), that are listened to for change events.
-            // If undefined, it is set to the file input fields inside
-            // of the widget element on plugin initialization.
-            // Set to null to disable the change listener.
-            fileInput: undefined,
-            // By default, the file input field is replaced with a clone after
-            // each input field change event. This is required for iframe transport
-            // queues and allows change events to be fired for the same file
-            // selection, but can be disabled by setting the following option to false:
-            replaceFileInput: true,
-            // The parameter name for the file form data (the request argument name).
-            // If undefined or empty, the name property of the file input field is
-            // used, or "files[]" if the file input name property is also empty,
-            // can be a string or an array of strings:
-            paramName: undefined,
-            // By default, each file of a selection is uploaded using an individual
-            // request for XHR type uploads. Set to false to upload file
-            // selections in one request each:
-            singleFileUploads: true,
-            // To limit the number of files uploaded with one XHR request,
-            // set the following option to an integer greater than 0:
-            limitMultiFileUploads: undefined,
-            // The following option limits the number of files uploaded with one
-            // XHR request to keep the request size under or equal to the defined
-            // limit in bytes:
-            limitMultiFileUploadSize: undefined,
-            // Multipart file uploads add a number of bytes to each uploaded file,
-            // therefore the following option adds an overhead for each file used
-            // in the limitMultiFileUploadSize configuration:
-            limitMultiFileUploadSizeOverhead: 512,
-            // Set the following option to true to issue all file upload requests
-            // in a sequential order:
-            sequentialUploads: false,
-            // To limit the number of concurrent uploads,
-            // set the following option to an integer greater than 0:
-            limitConcurrentUploads: undefined,
-            // Set the following option to true to force iframe transport uploads:
-            forceIframeTransport: false,
-            // Set the following option to the location of a redirect url on the
-            // origin server, for cross-domain iframe transport uploads:
-            redirect: undefined,
-            // The parameter name for the redirect url, sent as part of the form
-            // data and set to 'redirect' if this option is empty:
-            redirectParamName: undefined,
-            // Set the following option to the location of a postMessage window,
-            // to enable postMessage transport uploads:
-            postMessage: undefined,
-            // By default, XHR file uploads are sent as multipart/form-data.
-            // The iframe transport is always using multipart/form-data.
-            // Set to false to enable non-multipart XHR uploads:
-            multipart: true,
-            // To upload large files in smaller chunks, set the following option
-            // to a preferred maximum chunk size. If set to 0, null or undefined,
-            // or the browser does not support the required Blob API, files will
-            // be uploaded as a whole.
-            maxChunkSize: undefined,
-            // When a non-multipart upload or a chunked multipart upload has been
-            // aborted, this option can be used to resume the upload by setting
-            // it to the size of the already uploaded bytes. This option is most
-            // useful when modifying the options object inside of the "add" or
-            // "send" callbacks, as the options are cloned for each file upload.
-            uploadedBytes: undefined,
-            // By default, failed (abort or error) file uploads are removed from the
-            // global progress calculation. Set the following option to false to
-            // prevent recalculating the global progress data:
-            recalculateProgress: true,
-            // Interval in milliseconds to calculate and trigger progress events:
-            progressInterval: 100,
-            // Interval in milliseconds to calculate progress bitrate:
-            bitrateInterval: 500,
-            // By default, uploads are started automatically when adding files:
-            autoUpload: true,
-            // By default, duplicate file names are expected to be handled on
-            // the server-side. If this is not possible (e.g. when uploading
-            // files directly to Amazon S3), the following option can be set to
-            // an empty object or an object mapping existing filenames, e.g.:
-            // { "image.jpg": true, "image (1).jpg": true }
-            // If it is set, all files will be uploaded with unique filenames,
-            // adding increasing number suffixes if necessary, e.g.:
-            // "image (2).jpg"
-            uniqueFilenames: undefined,
-
-            // Error and info messages:
-            messages: {
-                uploadedBytes: 'Uploaded bytes exceed file size'
-            },
-
-            // Translation function, gets the message key to be translated
-            // and an object with context specific data as arguments:
-            i18n: function (message, context) {
-                message = this.messages[message] || message.toString();
-                if (context) {
-                    $.each(context, function (key, value) {
-                        message = message.replace('{' + key + '}', value);
-                    });
-                }
-                return message;
-            },
-
-            // Additional form data to be sent along with the file uploads can be set
-            // using this option, which accepts an array of objects with name and
-            // value properties, a function returning such an array, a FormData
-            // object (for XHR file uploads), or a simple object.
-            // The form of the first fileInput is given as parameter to the function:
-            formData: function (form) {
-                return form.serializeArray();
-            },
-
-            // The add callback is invoked as soon as files are added to the fileupload
-            // widget (via file input selection, drag & drop, paste or add API call).
-            // If the singleFileUploads option is enabled, this callback will be
-            // called once for each file in the selection for XHR file uploads, else
-            // once for each file selection.
-            //
-            // The upload starts when the submit method is invoked on the data parameter.
-            // The data object contains a files property holding the added files
-            // and allows you to override plugin options as well as define ajax settings.
-            //
-            // Listeners for this callback can also be bound the following way:
-            // .bind('fileuploadadd', func);
-            //
-            // data.submit() returns a Promise object and allows to attach additional
-            // handlers using jQuery's Deferred callbacks:
-            // data.submit().done(func).fail(func).always(func);
-            add: function (e, data) {
-                if (e.isDefaultPrevented()) {
-                    return false;
-                }
-                if (data.autoUpload || (data.autoUpload !== false &&
-                        $(this).fileupload('option', 'autoUpload'))) {
-                    data.process().done(function () {
-                        data.submit();
-                    });
-                }
-            },
+      // Other callbacks:
 
-            // Other callbacks:
+      // Callback for the submit event of each file upload:
+      // submit: function (e, data) {}, // .bind('fileuploadsubmit', func);
 
-            // Callback for the submit event of each file upload:
-            // submit: function (e, data) {}, // .bind('fileuploadsubmit', func);
+      // Callback for the start of each file upload request:
+      // send: function (e, data) {}, // .bind('fileuploadsend', func);
 
-            // Callback for the start of each file upload request:
-            // send: function (e, data) {}, // .bind('fileuploadsend', func);
+      // Callback for successful uploads:
+      // done: function (e, data) {}, // .bind('fileuploaddone', func);
 
-            // Callback for successful uploads:
-            // done: function (e, data) {}, // .bind('fileuploaddone', func);
+      // Callback for failed (abort or error) uploads:
+      // fail: function (e, data) {}, // .bind('fileuploadfail', func);
 
-            // Callback for failed (abort or error) uploads:
-            // fail: function (e, data) {}, // .bind('fileuploadfail', func);
+      // Callback for completed (success, abort or error) requests:
+      // always: function (e, data) {}, // .bind('fileuploadalways', func);
 
-            // Callback for completed (success, abort or error) requests:
-            // always: function (e, data) {}, // .bind('fileuploadalways', func);
+      // Callback for upload progress events:
+      // progress: function (e, data) {}, // .bind('fileuploadprogress', func);
 
-            // Callback for upload progress events:
-            // progress: function (e, data) {}, // .bind('fileuploadprogress', func);
+      // Callback for global upload progress events:
+      // progressall: function (e, data) {}, // .bind('fileuploadprogressall', func);
 
-            // Callback for global upload progress events:
-            // progressall: function (e, data) {}, // .bind('fileuploadprogressall', func);
+      // Callback for uploads start, equivalent to the global ajaxStart event:
+      // start: function (e) {}, // .bind('fileuploadstart', func);
 
-            // Callback for uploads start, equivalent to the global ajaxStart event:
-            // start: function (e) {}, // .bind('fileuploadstart', func);
+      // Callback for uploads stop, equivalent to the global ajaxStop event:
+      // stop: function (e) {}, // .bind('fileuploadstop', func);
 
-            // Callback for uploads stop, equivalent to the global ajaxStop event:
-            // stop: function (e) {}, // .bind('fileuploadstop', func);
+      // Callback for change events of the fileInput(s):
+      // change: function (e, data) {}, // .bind('fileuploadchange', func);
 
-            // Callback for change events of the fileInput(s):
-            // change: function (e, data) {}, // .bind('fileuploadchange', func);
+      // Callback for paste events to the pasteZone(s):
+      // paste: function (e, data) {}, // .bind('fileuploadpaste', func);
 
-            // Callback for paste events to the pasteZone(s):
-            // paste: function (e, data) {}, // .bind('fileuploadpaste', func);
+      // Callback for drop events of the dropZone(s):
+      // drop: function (e, data) {}, // .bind('fileuploaddrop', func);
 
-            // Callback for drop events of the dropZone(s):
-            // drop: function (e, data) {}, // .bind('fileuploaddrop', func);
+      // Callback for dragover events of the dropZone(s):
+      // dragover: function (e) {}, // .bind('fileuploaddragover', func);
 
-            // Callback for dragover events of the dropZone(s):
-            // dragover: function (e) {}, // .bind('fileuploaddragover', func);
+      // Callback before the start of each chunk upload request (before form data initialization):
+      // chunkbeforesend: function (e, data) {}, // .bind('fileuploadchunkbeforesend', func);
 
-            // Callback before the start of each chunk upload request (before form data initialization):
-            // chunkbeforesend: function (e, data) {}, // .bind('fileuploadchunkbeforesend', func);
+      // Callback for the start of each chunk upload request:
+      // chunksend: function (e, data) {}, // .bind('fileuploadchunksend', func);
 
-            // Callback for the start of each chunk upload request:
-            // chunksend: function (e, data) {}, // .bind('fileuploadchunksend', func);
+      // Callback for successful chunk uploads:
+      // chunkdone: function (e, data) {}, // .bind('fileuploadchunkdone', func);
 
-            // Callback for successful chunk uploads:
-            // chunkdone: function (e, data) {}, // .bind('fileuploadchunkdone', func);
+      // Callback for failed (abort or error) chunk uploads:
+      // chunkfail: function (e, data) {}, // .bind('fileuploadchunkfail', func);
 
-            // Callback for failed (abort or error) chunk uploads:
-            // chunkfail: function (e, data) {}, // .bind('fileuploadchunkfail', func);
+      // Callback for completed (success, abort or error) chunk upload requests:
+      // chunkalways: function (e, data) {}, // .bind('fileuploadchunkalways', func);
 
-            // Callback for completed (success, abort or error) chunk upload requests:
-            // chunkalways: function (e, data) {}, // .bind('fileuploadchunkalways', func);
+      // The plugin options are used as settings object for the ajax calls.
+      // The following are jQuery ajax settings required for the file uploads:
+      processData: false,
+      contentType: false,
+      cache: false,
+      timeout: 0
+    },
 
-            // The plugin options are used as settings object for the ajax calls.
-            // The following are jQuery ajax settings required for the file uploads:
-            processData: false,
-            contentType: false,
-            cache: false,
-            timeout: 0
-        },
+    // A list of options that require reinitializing event listeners and/or
+    // special initialization code:
+    _specialOptions: [
+      'fileInput',
+      'dropZone',
+      'pasteZone',
+      'multipart',
+      'forceIframeTransport'
+    ],
 
-        // A list of options that require reinitializing event listeners and/or
-        // special initialization code:
-        _specialOptions: [
-            'fileInput',
-            'dropZone',
-            'pasteZone',
-            'multipart',
-            'forceIframeTransport'
-        ],
-
-        _blobSlice: $.support.blobSlice && function () {
-            var slice = this.slice || this.webkitSlice || this.mozSlice;
-            return slice.apply(this, arguments);
-        },
+    _blobSlice:
+      $.support.blobSlice &&
+      function() {
+        var slice = this.slice || this.webkitSlice || this.mozSlice;
+        return slice.apply(this, arguments);
+      },
 
-        _BitrateTimer: function () {
-            this.timestamp = ((Date.now) ? Date.now() : (new Date()).getTime());
-            this.loaded = 0;
-            this.bitrate = 0;
-            this.getBitrate = function (now, loaded, interval) {
-                var timeDiff = now - this.timestamp;
-                if (!this.bitrate || !interval || timeDiff > interval) {
-                    this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8;
-                    this.loaded = loaded;
-                    this.timestamp = now;
-                }
-                return this.bitrate;
-            };
-        },
-
-        _isXHRUpload: function (options) {
-            return !options.forceIframeTransport &&
-                ((!options.multipart && $.support.xhrFileUpload) ||
-                $.support.xhrFormDataFileUpload);
-        },
-
-        _getFormData: function (options) {
-            var formData;
-            if ($.type(options.formData) === 'function') {
-                return options.formData(options.form);
-            }
-            if ($.isArray(options.formData)) {
-                return options.formData;
-            }
-            if ($.type(options.formData) === 'object') {
-                formData = [];
-                $.each(options.formData, function (name, value) {
-                    formData.push({name: name, value: value});
-                });
-                return formData;
-            }
-            return [];
-        },
-
-        _getTotal: function (files) {
-            var total = 0;
-            $.each(files, function (index, file) {
-                total += file.size || 1;
+    _BitrateTimer: function() {
+      this.timestamp = Date.now ? Date.now() : new Date().getTime();
+      this.loaded = 0;
+      this.bitrate = 0;
+      this.getBitrate = function(now, loaded, interval) {
+        var timeDiff = now - this.timestamp;
+        if (!this.bitrate || !interval || timeDiff > interval) {
+          this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8;
+          this.loaded = loaded;
+          this.timestamp = now;
+        }
+        return this.bitrate;
+      };
+    },
+
+    _isXHRUpload: function(options) {
+      return (
+        !options.forceIframeTransport &&
+        ((!options.multipart && $.support.xhrFileUpload) ||
+          $.support.xhrFormDataFileUpload)
+      );
+    },
+
+    _getFormData: function(options) {
+      var formData;
+      if ($.type(options.formData) === 'function') {
+        return options.formData(options.form);
+      }
+      if ($.isArray(options.formData)) {
+        return options.formData;
+      }
+      if ($.type(options.formData) === 'object') {
+        formData = [];
+        $.each(options.formData, function(name, value) {
+          formData.push({ name: name, value: value });
+        });
+        return formData;
+      }
+      return [];
+    },
+
+    _getTotal: function(files) {
+      var total = 0;
+      $.each(files, function(index, file) {
+        total += file.size || 1;
+      });
+      return total;
+    },
+
+    _initProgressObject: function(obj) {
+      var progress = {
+        loaded: 0,
+        total: 0,
+        bitrate: 0
+      };
+      if (obj._progress) {
+        $.extend(obj._progress, progress);
+      } else {
+        obj._progress = progress;
+      }
+    },
+
+    _initResponseObject: function(obj) {
+      var prop;
+      if (obj._response) {
+        for (prop in obj._response) {
+          if (Object.prototype.hasOwnProperty.call(obj._response, prop)) {
+            delete obj._response[prop];
+          }
+        }
+      } else {
+        obj._response = {};
+      }
+    },
+
+    _onProgress: function(e, data) {
+      if (e.lengthComputable) {
+        var now = Date.now ? Date.now() : new Date().getTime(),
+          loaded;
+        if (
+          data._time &&
+          data.progressInterval &&
+          now - data._time < data.progressInterval &&
+          e.loaded !== e.total
+        ) {
+          return;
+        }
+        data._time = now;
+        loaded =
+          Math.floor(
+            (e.loaded / e.total) * (data.chunkSize || data._progress.total)
+          ) + (data.uploadedBytes || 0);
+        // Add the difference from the previously loaded state
+        // to the global loaded counter:
+        this._progress.loaded += loaded - data._progress.loaded;
+        this._progress.bitrate = this._bitrateTimer.getBitrate(
+          now,
+          this._progress.loaded,
+          data.bitrateInterval
+        );
+        data._progress.loaded = data.loaded = loaded;
+        data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate(
+          now,
+          loaded,
+          data.bitrateInterval
+        );
+        // Trigger a custom progress event with a total data property set
+        // to the file size(s) of the current upload and a loaded data
+        // property calculated accordingly:
+        this._trigger(
+          'progress',
+          $.Event('progress', { delegatedEvent: e }),
+          data
+        );
+        // Trigger a global progress event for all current file uploads,
+        // including ajax calls queued for sequential file uploads:
+        this._trigger(
+          'progressall',
+          $.Event('progressall', { delegatedEvent: e }),
+          this._progress
+        );
+      }
+    },
+
+    _initProgressListener: function(options) {
+      var that = this,
+        xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr();
+      // Accesss to the native XHR object is required to add event listeners
+      // for the upload progress event:
+      if (xhr.upload) {
+        $(xhr.upload).bind('progress', function(e) {
+          var oe = e.originalEvent;
+          // Make sure the progress event properties get copied over:
+          e.lengthComputable = oe.lengthComputable;
+          e.loaded = oe.loaded;
+          e.total = oe.total;
+          that._onProgress(e, options);
+        });
+        options.xhr = function() {
+          return xhr;
+        };
+      }
+    },
+
+    _deinitProgressListener: function(options) {
+      var xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr();
+      if (xhr.upload) {
+        $(xhr.upload).unbind('progress');
+      }
+    },
+
+    _isInstanceOf: function(type, obj) {
+      // Cross-frame instanceof check
+      return Object.prototype.toString.call(obj) === '[object ' + type + ']';
+    },
+
+    _getUniqueFilename: function(name, map) {
+      // eslint-disable-next-line no-param-reassign
+      name = String(name);
+      if (map[name]) {
+        // eslint-disable-next-line no-param-reassign
+        name = name.replace(/(?: \(([\d]+)\))?(\.[^.]+)?$/, function(
+          _,
+          p1,
+          p2
+        ) {
+          var index = p1 ? Number(p1) + 1 : 1;
+          var ext = p2 || '';
+          return ' (' + index + ')' + ext;
+        });
+        return this._getUniqueFilename(name, map);
+      }
+      map[name] = true;
+      return name;
+    },
+
+    _initXHRData: function(options) {
+      var that = this,
+        formData,
+        file = options.files[0],
+        // Ignore non-multipart setting if not supported:
+        multipart = options.multipart || !$.support.xhrFileUpload,
+        paramName =
+          $.type(options.paramName) === 'array'
+            ? options.paramName[0]
+            : options.paramName;
+      options.headers = $.extend({}, options.headers);
+      if (options.contentRange) {
+        options.headers['Content-Range'] = options.contentRange;
+      }
+      if (!multipart || options.blob || !this._isInstanceOf('File', file)) {
+        options.headers['Content-Disposition'] =
+          'attachment; filename="' +
+          encodeURI(file.uploadName || file.name) +
+          '"';
+      }
+      if (!multipart) {
+        options.contentType = file.type || 'application/octet-stream';
+        options.data = options.blob || file;
+      } else if ($.support.xhrFormDataFileUpload) {
+        if (options.postMessage) {
+          // window.postMessage does not allow sending FormData
+          // objects, so we just add the File/Blob objects to
+          // the formData array and let the postMessage window
+          // create the FormData object out of this array:
+          formData = this._getFormData(options);
+          if (options.blob) {
+            formData.push({
+              name: paramName,
+              value: options.blob
             });
-            return total;
-        },
-
-        _initProgressObject: function (obj) {
-            var progress = {
-                loaded: 0,
-                total: 0,
-                bitrate: 0
-            };
-            if (obj._progress) {
-                $.extend(obj._progress, progress);
-            } else {
-                obj._progress = progress;
-            }
-        },
-
-        _initResponseObject: function (obj) {
-            var prop;
-            if (obj._response) {
-                for (prop in obj._response) {
-                    if (obj._response.hasOwnProperty(prop)) {
-                        delete obj._response[prop];
-                    }
-                }
-            } else {
-                obj._response = {};
-            }
-        },
-
-        _onProgress: function (e, data) {
-            if (e.lengthComputable) {
-                var now = ((Date.now) ? Date.now() : (new Date()).getTime()),
-                    loaded;
-                if (data._time && data.progressInterval &&
-                        (now - data._time < data.progressInterval) &&
-                        e.loaded !== e.total) {
-                    return;
-                }
-                data._time = now;
-                loaded = Math.floor(
-                    e.loaded / e.total * (data.chunkSize || data._progress.total)
-                ) + (data.uploadedBytes || 0);
-                // Add the difference from the previously loaded state
-                // to the global loaded counter:
-                this._progress.loaded += (loaded - data._progress.loaded);
-                this._progress.bitrate = this._bitrateTimer.getBitrate(
-                    now,
-                    this._progress.loaded,
-                    data.bitrateInterval
-                );
-                data._progress.loaded = data.loaded = loaded;
-                data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate(
-                    now,
-                    loaded,
-                    data.bitrateInterval
-                );
-                // Trigger a custom progress event with a total data property set
-                // to the file size(s) of the current upload and a loaded data
-                // property calculated accordingly:
-                this._trigger(
-                    'progress',
-                    $.Event('progress', {delegatedEvent: e}),
-                    data
-                );
-                // Trigger a global progress event for all current file uploads,
-                // including ajax calls queued for sequential file uploads:
-                this._trigger(
-                    'progressall',
-                    $.Event('progressall', {delegatedEvent: e}),
-                    this._progress
-                );
-            }
-        },
-
-        _initProgressListener: function (options) {
-            var that = this,
-                xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr();
-            // Accesss to the native XHR object is required to add event listeners
-            // for the upload progress event:
-            if (xhr.upload) {
-                $(xhr.upload).bind('progress', function (e) {
-                    var oe = e.originalEvent;
-                    // Make sure the progress event properties get copied over:
-                    e.lengthComputable = oe.lengthComputable;
-                    e.loaded = oe.loaded;
-                    e.total = oe.total;
-                    that._onProgress(e, options);
-                });
-                options.xhr = function () {
-                    return xhr;
-                };
-            }
-        },
-
-        _deinitProgressListener: function (options) {
-            var xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr();
-            if (xhr.upload) {
-                $(xhr.upload).unbind('progress');
-            }
-        },
-
-        _isInstanceOf: function (type, obj) {
-            // Cross-frame instanceof check
-            return Object.prototype.toString.call(obj) === '[object ' + type + ']';
-        },
-
-        _getUniqueFilename: function (name, map) {
-            name = String(name);
-            if (map[name]) {
-                name = name.replace(
-                    /(?: \(([\d]+)\))?(\.[^.]+)?$/,
-                    function (_, p1, p2) {
-                        var index = p1 ? Number(p1) + 1 : 1;
-                        var ext = p2 || '';
-                        return ' (' + index + ')' + ext;
-                    }
-                );
-                return this._getUniqueFilename(name, map);
-            }
-            map[name] = true;
-            return name;
-        },
-
-        _initXHRData: function (options) {
-            var that = this,
-                formData,
-                file = options.files[0],
-                // Ignore non-multipart setting if not supported:
-                multipart = options.multipart || !$.support.xhrFileUpload,
-                paramName = $.type(options.paramName) === 'array' ?
-                    options.paramName[0] : options.paramName;
-            options.headers = $.extend({}, options.headers);
-            if (options.contentRange) {
-                options.headers['Content-Range'] = options.contentRange;
-            }
-            if (!multipart || options.blob || !this._isInstanceOf('File', file)) {
-                options.headers['Content-Disposition'] = 'attachment; filename="' +
-                    encodeURI(file.uploadName || file.name) + '"';
-            }
-            if (!multipart) {
-                options.contentType = file.type || 'application/octet-stream';
-                options.data = options.blob || file;
-            } else if ($.support.xhrFormDataFileUpload) {
-                if (options.postMessage) {
-                    // window.postMessage does not allow sending FormData
-                    // objects, so we just add the File/Blob objects to
-                    // the formData array and let the postMessage window
-                    // create the FormData object out of this array:
-                    formData = this._getFormData(options);
-                    if (options.blob) {
-                        formData.push({
-                            name: paramName,
-                            value: options.blob
-                        });
-                    } else {
-                        $.each(options.files, function (index, file) {
-                            formData.push({
-                                name: ($.type(options.paramName) === 'array' &&
-                                    options.paramName[index]) || paramName,
-                                value: file
-                            });
-                        });
-                    }
-                } else {
-                    if (that._isInstanceOf('FormData', options.formData)) {
-                        formData = options.formData;
-                    } else {
-                        formData = new FormData();
-                        $.each(this._getFormData(options), function (index, field) {
-                            formData.append(field.name, field.value);
-                        });
-                    }
-                    if (options.blob) {
-                        formData.append(
-                            paramName,
-                            options.blob,
-                            file.uploadName || file.name
-                        );
-                    } else {
-                        $.each(options.files, function (index, file) {
-                            // This check allows the tests to run with
-                            // dummy objects:
-                            if (that._isInstanceOf('File', file) ||
-                                    that._isInstanceOf('Blob', file)) {
-                                var fileName = file.uploadName || file.name;
-                                if (options.uniqueFilenames) {
-                                    fileName = that._getUniqueFilename(
-                                        fileName,
-                                        options.uniqueFilenames
-                                    );
-                                }
-                                formData.append(
-                                    ($.type(options.paramName) === 'array' &&
-                                        options.paramName[index]) || paramName,
-                                    file,
-                                    fileName
-                                );
-                            }
-                        });
-                    }
-                }
-                options.data = formData;
-            }
-            // Blob reference is not needed anymore, free memory:
-            options.blob = null;
-        },
-
-        _initIframeSettings: function (options) {
-            var targetHost = $('<a></a>').prop('href', options.url).prop('host');
-            // Setting the dataType to iframe enables the iframe transport:
-            options.dataType = 'iframe ' + (options.dataType || '');
-            // The iframe transport accepts a serialized array as form data:
-            options.formData = this._getFormData(options);
-            // Add redirect url to form data on cross-domain uploads:
-            if (options.redirect && targetHost && targetHost !== location.host) {
-                options.formData.push({
-                    name: options.redirectParamName || 'redirect',
-                    value: options.redirect
-                });
-            }
-        },
-
-        _initDataSettings: function (options) {
-            if (this._isXHRUpload(options)) {
-                if (!this._chunkedUpload(options, true)) {
-                    if (!options.data) {
-                        this._initXHRData(options);
-                    }
-                    this._initProgressListener(options);
-                }
-                if (options.postMessage) {
-                    // Setting the dataType to postmessage enables the
-                    // postMessage transport:
-                    options.dataType = 'postmessage ' + (options.dataType || '');
-                }
-            } else {
-                this._initIframeSettings(options);
-            }
-        },
-
-        _getParamName: function (options) {
-            var fileInput = $(options.fileInput),
-                paramName = options.paramName;
-            if (!paramName) {
-                paramName = [];
-                fileInput.each(function () {
-                    var input = $(this),
-                        name = input.prop('name') || 'files[]',
-                        i = (input.prop('files') || [1]).length;
-                    while (i) {
-                        paramName.push(name);
-                        i -= 1;
-                    }
-                });
-                if (!paramName.length) {
-                    paramName = [fileInput.prop('name') || 'files[]'];
-                }
-            } else if (!$.isArray(paramName)) {
-                paramName = [paramName];
-            }
-            return paramName;
-        },
-
-        _initFormSettings: function (options) {
-            // Retrieve missing options from the input field and the
-            // associated form, if available:
-            if (!options.form || !options.form.length) {
-                options.form = $(options.fileInput.prop('form'));
-                // If the given file input doesn't have an associated form,
-                // use the default widget file input's form:
-                if (!options.form.length) {
-                    options.form = $(this.options.fileInput.prop('form'));
-                }
-            }
-            options.paramName = this._getParamName(options);
-            if (!options.url) {
-                options.url = options.form.prop('action') || location.href;
-            }
-            // The HTTP request method must be "POST" or "PUT":
-            options.type = (options.type ||
-                ($.type(options.form.prop('method')) === 'string' &&
-                    options.form.prop('method')) || ''
-                ).toUpperCase();
-            if (options.type !== 'POST' && options.type !== 'PUT' &&
-                    options.type !== 'PATCH') {
-                options.type = 'POST';
-            }
-            if (!options.formAcceptCharset) {
-                options.formAcceptCharset = options.form.attr('accept-charset');
-            }
-        },
-
-        _getAJAXSettings: function (data) {
-            var options = $.extend({}, this.options, data);
-            this._initFormSettings(options);
-            this._initDataSettings(options);
-            return options;
-        },
-
-        // jQuery 1.6 doesn't provide .state(),
-        // while jQuery 1.8+ removed .isRejected() and .isResolved():
-        _getDeferredState: function (deferred) {
-            if (deferred.state) {
-                return deferred.state();
-            }
-            if (deferred.isResolved()) {
-                return 'resolved';
-            }
-            if (deferred.isRejected()) {
-                return 'rejected';
-            }
-            return 'pending';
-        },
-
-        // Maps jqXHR callbacks to the equivalent
-        // methods of the given Promise object:
-        _enhancePromise: function (promise) {
-            promise.success = promise.done;
-            promise.error = promise.fail;
-            promise.complete = promise.always;
-            return promise;
-        },
-
-        // Creates and returns a Promise object enhanced with
-        // the jqXHR methods abort, success, error and complete:
-        _getXHRPromise: function (resolveOrReject, context, args) {
-            var dfd = $.Deferred(),
-                promise = dfd.promise();
-            context = context || this.options.context || promise;
-            if (resolveOrReject === true) {
-                dfd.resolveWith(context, args);
-            } else if (resolveOrReject === false) {
-                dfd.rejectWith(context, args);
-            }
-            promise.abort = dfd.promise;
-            return this._enhancePromise(promise);
-        },
-
-        // Adds convenience methods to the data callback argument:
-        _addConvenienceMethods: function (e, data) {
-            var that = this,
-                getPromise = function (args) {
-                    return $.Deferred().resolveWith(that, args).promise();
-                };
-            data.process = function (resolveFunc, rejectFunc) {
-                if (resolveFunc || rejectFunc) {
-                    data._processQueue = this._processQueue =
-                        (this._processQueue || getPromise([this])).then(
-                            function () {
-                                if (data.errorThrown) {
-                                    return $.Deferred()
-                                        .rejectWith(that, [data]).promise();
-                                }
-                                return getPromise(arguments);
-                            }
-                        ).then(resolveFunc, rejectFunc);
-                }
-                return this._processQueue || getPromise([this]);
-            };
-            data.submit = function () {
-                if (this.state() !== 'pending') {
-                    data.jqXHR = this.jqXHR =
-                        (that._trigger(
-                            'submit',
-                            $.Event('submit', {delegatedEvent: e}),
-                            this
-                        ) !== false) && that._onSend(e, this);
-                }
-                return this.jqXHR || that._getXHRPromise();
-            };
-            data.abort = function () {
-                if (this.jqXHR) {
-                    return this.jqXHR.abort();
-                }
-                this.errorThrown = 'abort';
-                that._trigger('fail', null, this);
-                return that._getXHRPromise(false);
-            };
-            data.state = function () {
-                if (this.jqXHR) {
-                    return that._getDeferredState(this.jqXHR);
-                }
-                if (this._processQueue) {
-                    return that._getDeferredState(this._processQueue);
-                }
-            };
-            data.processing = function () {
-                return !this.jqXHR && this._processQueue && that
-                    ._getDeferredState(this._processQueue) === 'pending';
-            };
-            data.progress = function () {
-                return this._progress;
-            };
-            data.response = function () {
-                return this._response;
-            };
-        },
-
-        // Parses the Range header from the server response
-        // and returns the uploaded bytes:
-        _getUploadedBytes: function (jqXHR) {
-            var range = jqXHR.getResponseHeader('Range'),
-                parts = range && range.split('-'),
-                upperBytesPos = parts && parts.length > 1 &&
-                    parseInt(parts[1], 10);
-            return upperBytesPos && upperBytesPos + 1;
-        },
-
-        // Uploads a file in multiple, sequential requests
-        // by splitting the file up in multiple blob chunks.
-        // If the second parameter is true, only tests if the file
-        // should be uploaded in chunks, but does not invoke any
-        // upload requests:
-        _chunkedUpload: function (options, testOnly) {
-            options.uploadedBytes = options.uploadedBytes || 0;
-            var that = this,
-                file = options.files[0],
-                fs = file.size,
-                ub = options.uploadedBytes,
-                mcs = options.maxChunkSize || fs,
-                slice = this._blobSlice,
-                dfd = $.Deferred(),
-                promise = dfd.promise(),
-                jqXHR,
-                upload;
-            if (!(this._isXHRUpload(options) && slice && (ub || ($.type(mcs) === 'function' ? mcs(options) : mcs) < fs)) ||
-                    options.data) {
-                return false;
-            }
-            if (testOnly) {
-                return true;
-            }
-            if (ub >= fs) {
-                file.error = options.i18n('uploadedBytes');
-                return this._getXHRPromise(
-                    false,
-                    options.context,
-                    [null, 'error', file.error]
-                );
-            }
-            // The chunk upload method:
-            upload = function () {
-                // Clone the options object for each chunk upload:
-                var o = $.extend({}, options),
-                    currentLoaded = o._progress.loaded;
-                o.blob = slice.call(
-                    file,
-                    ub,
-                    ub + ($.type(mcs) === 'function' ? mcs(o) : mcs),
-                    file.type
-                );
-                // Store the current chunk size, as the blob itself
-                // will be dereferenced after data processing:
-                o.chunkSize = o.blob.size;
-                // Expose the chunk bytes position range:
-                o.contentRange = 'bytes ' + ub + '-' +
-                    (ub + o.chunkSize - 1) + '/' + fs;
-                // Trigger chunkbeforesend to allow form data to be updated for this chunk
-                that._trigger('chunkbeforesend', null, o);
-                // Process the upload data (the blob and potential form data):
-                that._initXHRData(o);
-                // Add progress listeners for this chunk upload:
-                that._initProgressListener(o);
-                jqXHR = ((that._trigger('chunksend', null, o) !== false && $.ajax(o)) ||
-                        that._getXHRPromise(false, o.context))
-                    .done(function (result, textStatus, jqXHR) {
-                        ub = that._getUploadedBytes(jqXHR) ||
-                            (ub + o.chunkSize);
-                        // Create a progress event if no final progress event
-                        // with loaded equaling total has been triggered
-                        // for this chunk:
-                        if (currentLoaded + o.chunkSize - o._progress.loaded) {
-                            that._onProgress($.Event('progress', {
-                                lengthComputable: true,
-                                loaded: ub - o.uploadedBytes,
-                                total: ub - o.uploadedBytes
-                            }), o);
-                        }
-                        options.uploadedBytes = o.uploadedBytes = ub;
-                        o.result = result;
-                        o.textStatus = textStatus;
-                        o.jqXHR = jqXHR;
-                        that._trigger('chunkdone', null, o);
-                        that._trigger('chunkalways', null, o);
-                        if (ub < fs) {
-                            // File upload not yet complete,
-                            // continue with the next chunk:
-                            upload();
-                        } else {
-                            dfd.resolveWith(
-                                o.context,
-                                [result, textStatus, jqXHR]
-                            );
-                        }
-                    })
-                    .fail(function (jqXHR, textStatus, errorThrown) {
-                        o.jqXHR = jqXHR;
-                        o.textStatus = textStatus;
-                        o.errorThrown = errorThrown;
-                        that._trigger('chunkfail', null, o);
-                        that._trigger('chunkalways', null, o);
-                        dfd.rejectWith(
-                            o.context,
-                            [jqXHR, textStatus, errorThrown]
-                        );
-                    })
-                    .always(function () {
-                        that._deinitProgressListener(o);
-                    });
-            };
-            this._enhancePromise(promise);
-            promise.abort = function () {
-                return jqXHR.abort();
-            };
-            upload();
-            return promise;
-        },
-
-        _beforeSend: function (e, data) {
-            if (this._active === 0) {
-                // the start callback is triggered when an upload starts
-                // and no other uploads are currently running,
-                // equivalent to the global ajaxStart event:
-                this._trigger('start');
-                // Set timer for global bitrate progress calculation:
-                this._bitrateTimer = new this._BitrateTimer();
-                // Reset the global progress values:
-                this._progress.loaded = this._progress.total = 0;
-                this._progress.bitrate = 0;
-            }
-            // Make sure the container objects for the .response() and
-            // .progress() methods on the data object are available
-            // and reset to their initial state:
-            this._initResponseObject(data);
-            this._initProgressObject(data);
-            data._progress.loaded = data.loaded = data.uploadedBytes || 0;
-            data._progress.total = data.total = this._getTotal(data.files) || 1;
-            data._progress.bitrate = data.bitrate = 0;
-            this._active += 1;
-            // Initialize the global progress values:
-            this._progress.loaded += data.loaded;
-            this._progress.total += data.total;
-        },
-
-        _onDone: function (result, textStatus, jqXHR, options) {
-            var total = options._progress.total,
-                response = options._response;
-            if (options._progress.loaded < total) {
-                // Create a progress event if no final progress event
-                // with loaded equaling total has been triggered:
-                this._onProgress($.Event('progress', {
-                    lengthComputable: true,
-                    loaded: total,
-                    total: total
-                }), options);
-            }
-            response.result = options.result = result;
-            response.textStatus = options.textStatus = textStatus;
-            response.jqXHR = options.jqXHR = jqXHR;
-            this._trigger('done', null, options);
-        },
-
-        _onFail: function (jqXHR, textStatus, errorThrown, options) {
-            var response = options._response;
-            if (options.recalculateProgress) {
-                // Remove the failed (error or abort) file upload from
-                // the global progress calculation:
-                this._progress.loaded -= options._progress.loaded;
-                this._progress.total -= options._progress.total;
-            }
-            response.jqXHR = options.jqXHR = jqXHR;
-            response.textStatus = options.textStatus = textStatus;
-            response.errorThrown = options.errorThrown = errorThrown;
-            this._trigger('fail', null, options);
-        },
-
-        _onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) {
-            // jqXHRorResult, textStatus and jqXHRorError are added to the
-            // options object via done and fail callbacks
-            this._trigger('always', null, options);
-        },
-
-        _onSend: function (e, data) {
-            if (!data.submit) {
-                this._addConvenienceMethods(e, data);
-            }
-            var that = this,
-                jqXHR,
-                aborted,
-                slot,
-                pipe,
-                options = that._getAJAXSettings(data),
-                send = function () {
-                    that._sending += 1;
-                    // Set timer for bitrate progress calculation:
-                    options._bitrateTimer = new that._BitrateTimer();
-                    jqXHR = jqXHR || (
-                        ((aborted || that._trigger(
-                            'send',
-                            $.Event('send', {delegatedEvent: e}),
-                            options
-                        ) === false) &&
-                        that._getXHRPromise(false, options.context, aborted)) ||
-                        that._chunkedUpload(options) || $.ajax(options)
-                    ).done(function (result, textStatus, jqXHR) {
-                        that._onDone(result, textStatus, jqXHR, options);
-                    }).fail(function (jqXHR, textStatus, errorThrown) {
-                        that._onFail(jqXHR, textStatus, errorThrown, options);
-                    }).always(function (jqXHRorResult, textStatus, jqXHRorError) {
-                        that._deinitProgressListener(options);
-                        that._onAlways(
-                            jqXHRorResult,
-                            textStatus,
-                            jqXHRorError,
-                            options
-                        );
-                        that._sending -= 1;
-                        that._active -= 1;
-                        if (options.limitConcurrentUploads &&
-                                options.limitConcurrentUploads > that._sending) {
-                            // Start the next queued upload,
-                            // that has not been aborted:
-                            var nextSlot = that._slots.shift();
-                            while (nextSlot) {
-                                if (that._getDeferredState(nextSlot) === 'pending') {
-                                    nextSlot.resolve();
-                                    break;
-                                }
-                                nextSlot = that._slots.shift();
-                            }
-                        }
-                        if (that._active === 0) {
-                            // The stop callback is triggered when all uploads have
-                            // been completed, equivalent to the global ajaxStop event:
-                            that._trigger('stop');
-                        }
-                    });
-                    return jqXHR;
-                };
-            this._beforeSend(e, options);
-            if (this.options.sequentialUploads ||
-                    (this.options.limitConcurrentUploads &&
-                    this.options.limitConcurrentUploads <= this._sending)) {
-                if (this.options.limitConcurrentUploads > 1) {
-                    slot = $.Deferred();
-                    this._slots.push(slot);
-                    pipe = slot.then(send);
-                } else {
-                    this._sequence = this._sequence.then(send, send);
-                    pipe = this._sequence;
-                }
-                // Return the piped Promise object, enhanced with an abort method,
-                // which is delegated to the jqXHR object of the current upload,
-                // and jqXHR callbacks mapped to the equivalent Promise methods:
-                pipe.abort = function () {
-                    aborted = [undefined, 'abort', 'abort'];
-                    if (!jqXHR) {
-                        if (slot) {
-                            slot.rejectWith(options.context, aborted);
-                        }
-                        return send();
-                    }
-                    return jqXHR.abort();
-                };
-                return this._enhancePromise(pipe);
-            }
-            return send();
-        },
-
-        _onAdd: function (e, data) {
-            var that = this,
-                result = true,
-                options = $.extend({}, this.options, data),
-                files = data.files,
-                filesLength = files.length,
-                limit = options.limitMultiFileUploads,
-                limitSize = options.limitMultiFileUploadSize,
-                overhead = options.limitMultiFileUploadSizeOverhead,
-                batchSize = 0,
-                paramName = this._getParamName(options),
-                paramNameSet,
-                paramNameSlice,
-                fileSet,
-                i,
-                j = 0;
-            if (!filesLength) {
-                return false;
-            }
-            if (limitSize && files[0].size === undefined) {
-                limitSize = undefined;
-            }
-            if (!(options.singleFileUploads || limit || limitSize) ||
-                    !this._isXHRUpload(options)) {
-                fileSet = [files];
-                paramNameSet = [paramName];
-            } else if (!(options.singleFileUploads || limitSize) && limit) {
-                fileSet = [];
-                paramNameSet = [];
-                for (i = 0; i < filesLength; i += limit) {
-                    fileSet.push(files.slice(i, i + limit));
-                    paramNameSlice = paramName.slice(i, i + limit);
-                    if (!paramNameSlice.length) {
-                        paramNameSlice = paramName;
-                    }
-                    paramNameSet.push(paramNameSlice);
-                }
-            } else if (!options.singleFileUploads && limitSize) {
-                fileSet = [];
-                paramNameSet = [];
-                for (i = 0; i < filesLength; i = i + 1) {
-                    batchSize += files[i].size + overhead;
-                    if (i + 1 === filesLength ||
-                            ((batchSize + files[i + 1].size + overhead) > limitSize) ||
-                            (limit && i + 1 - j >= limit)) {
-                        fileSet.push(files.slice(j, i + 1));
-                        paramNameSlice = paramName.slice(j, i + 1);
-                        if (!paramNameSlice.length) {
-                            paramNameSlice = paramName;
-                        }
-                        paramNameSet.push(paramNameSlice);
-                        j = i + 1;
-                        batchSize = 0;
-                    }
-                }
-            } else {
-                paramNameSet = paramName;
-            }
-            data.originalFiles = files;
-            $.each(fileSet || files, function (index, element) {
-                var newData = $.extend({}, data);
-                newData.files = fileSet ? element : [element];
-                newData.paramName = paramNameSet[index];
-                that._initResponseObject(newData);
-                that._initProgressObject(newData);
-                that._addConvenienceMethods(e, newData);
-                result = that._trigger(
-                    'add',
-                    $.Event('add', {delegatedEvent: e}),
-                    newData
-                );
-                return result;
+          } else {
+            $.each(options.files, function(index, file) {
+              formData.push({
+                name:
+                  ($.type(options.paramName) === 'array' &&
+                    options.paramName[index]) ||
+                  paramName,
+                value: file
+              });
             });
-            return result;
-        },
-
-        _replaceFileInput: function (data) {
-            var input = data.fileInput,
-                inputClone = input.clone(true),
-                restoreFocus = input.is(document.activeElement);
-            // Add a reference for the new cloned file input to the data argument:
-            data.fileInputClone = inputClone;
-            $('<form></form>').append(inputClone)[0].reset();
-            // Detaching allows to insert the fileInput on another form
-            // without loosing the file input value:
-            input.after(inputClone).detach();
-            // If the fileInput had focus before it was detached,
-            // restore focus to the inputClone.
-            if (restoreFocus) {
-                inputClone.focus();
-            }
-            // Avoid memory leaks with the detached file input:
-            $.cleanData(input.unbind('remove'));
-            // Replace the original file input element in the fileInput
-            // elements set with the clone, which has been copied including
-            // event handlers:
-            this.options.fileInput = this.options.fileInput.map(function (i, el) {
-                if (el === input[0]) {
-                    return inputClone[0];
-                }
-                return el;
+          }
+        } else {
+          if (that._isInstanceOf('FormData', options.formData)) {
+            formData = options.formData;
+          } else {
+            formData = new FormData();
+            $.each(this._getFormData(options), function(index, field) {
+              formData.append(field.name, field.value);
             });
-            // If the widget has been initialized on the file input itself,
-            // override this.element with the file input clone:
-            if (input[0] === this.element[0]) {
-                this.element = inputClone;
-            }
-        },
-
-        _handleFileTreeEntry: function (entry, path) {
-            var that = this,
-                dfd = $.Deferred(),
-                entries = [],
-                dirReader,
-                errorHandler = function (e) {
-                    if (e && !e.entry) {
-                        e.entry = entry;
-                    }
-                    // Since $.when returns immediately if one
-                    // Deferred is rejected, we use resolve instead.
-                    // This allows valid files and invalid items
-                    // to be returned together in one set:
-                    dfd.resolve([e]);
-                },
-                successHandler = function (entries) {
-                    that._handleFileTreeEntries(
-                        entries,
-                        path + entry.name + '/'
-                    ).done(function (files) {
-                        dfd.resolve(files);
-                    }).fail(errorHandler);
-                },
-                readEntries = function () {
-                    dirReader.readEntries(function (results) {
-                        if (!results.length) {
-                            successHandler(entries);
-                        } else {
-                            entries = entries.concat(results);
-                            readEntries();
-                        }
-                    }, errorHandler);
-                };
-            path = path || '';
-            if (entry.isFile) {
-                if (entry._file) {
-                    // Workaround for Chrome bug #149735
-                    entry._file.relativePath = path;
-                    dfd.resolve(entry._file);
-                } else {
-                    entry.file(function (file) {
-                        file.relativePath = path;
-                        dfd.resolve(file);
-                    }, errorHandler);
+          }
+          if (options.blob) {
+            formData.append(
+              paramName,
+              options.blob,
+              file.uploadName || file.name
+            );
+          } else {
+            $.each(options.files, function(index, file) {
+              // This check allows the tests to run with
+              // dummy objects:
+              if (
+                that._isInstanceOf('File', file) ||
+                that._isInstanceOf('Blob', file)
+              ) {
+                var fileName = file.uploadName || file.name;
+                if (options.uniqueFilenames) {
+                  fileName = that._getUniqueFilename(
+                    fileName,
+                    options.uniqueFilenames
+                  );
                 }
-            } else if (entry.isDirectory) {
-                dirReader = entry.createReader();
-                readEntries();
-            } else {
-                // Return an empty list for file system items
-                // other than files or directories:
-                dfd.resolve([]);
-            }
-            return dfd.promise();
-        },
-
-        _handleFileTreeEntries: function (entries, path) {
-            var that = this;
-            return $.when.apply(
-                $,
-                $.map(entries, function (entry) {
-                    return that._handleFileTreeEntry(entry, path);
-                })
-            ).then(function () {
-                return Array.prototype.concat.apply(
-                    [],
-                    arguments
+                formData.append(
+                  ($.type(options.paramName) === 'array' &&
+                    options.paramName[index]) ||
+                    paramName,
+                  file,
+                  fileName
                 );
+              }
             });
-        },
-
-        _getDroppedFiles: function (dataTransfer) {
-            dataTransfer = dataTransfer || {};
-            var items = dataTransfer.items;
-            if (items && items.length && (items[0].webkitGetAsEntry ||
-                    items[0].getAsEntry)) {
-                return this._handleFileTreeEntries(
-                    $.map(items, function (item) {
-                        var entry;
-                        if (item.webkitGetAsEntry) {
-                            entry = item.webkitGetAsEntry();
-                            if (entry) {
-                                // Workaround for Chrome bug #149735:
-                                entry._file = item.getAsFile();
-                            }
-                            return entry;
-                        }
-                        return item.getAsEntry();
-                    })
-                );
-            }
-            return $.Deferred().resolve(
-                $.makeArray(dataTransfer.files)
-            ).promise();
-        },
-
-        _getSingleFileInputFiles: function (fileInput) {
-            fileInput = $(fileInput);
-            var entries = fileInput.prop('webkitEntries') ||
-                    fileInput.prop('entries'),
-                files,
-                value;
-            if (entries && entries.length) {
-                return this._handleFileTreeEntries(entries);
-            }
-            files = $.makeArray(fileInput.prop('files'));
-            if (!files.length) {
-                value = fileInput.prop('value');
-                if (!value) {
-                    return $.Deferred().resolve([]).promise();
-                }
-                // If the files property is not available, the browser does not
-                // support the File API and we add a pseudo File object with
-                // the input value as name with path information removed:
-                files = [{name: value.replace(/^.*\\/, '')}];
-            } else if (files[0].name === undefined && files[0].fileName) {
-                // File normalization for Safari 4 and Firefox 3:
-                $.each(files, function (index, file) {
-                    file.name = file.fileName;
-                    file.size = file.fileSize;
-                });
+          }
+        }
+        options.data = formData;
+      }
+      // Blob reference is not needed anymore, free memory:
+      options.blob = null;
+    },
+
+    _initIframeSettings: function(options) {
+      var targetHost = $('<a></a>')
+        .prop('href', options.url)
+        .prop('host');
+      // Setting the dataType to iframe enables the iframe transport:
+      options.dataType = 'iframe ' + (options.dataType || '');
+      // The iframe transport accepts a serialized array as form data:
+      options.formData = this._getFormData(options);
+      // Add redirect url to form data on cross-domain uploads:
+      if (options.redirect && targetHost && targetHost !== location.host) {
+        options.formData.push({
+          name: options.redirectParamName || 'redirect',
+          value: options.redirect
+        });
+      }
+    },
+
+    _initDataSettings: function(options) {
+      if (this._isXHRUpload(options)) {
+        if (!this._chunkedUpload(options, true)) {
+          if (!options.data) {
+            this._initXHRData(options);
+          }
+          this._initProgressListener(options);
+        }
+        if (options.postMessage) {
+          // Setting the dataType to postmessage enables the
+          // postMessage transport:
+          options.dataType = 'postmessage ' + (options.dataType || '');
+        }
+      } else {
+        this._initIframeSettings(options);
+      }
+    },
+
+    _getParamName: function(options) {
+      var fileInput = $(options.fileInput),
+        paramName = options.paramName;
+      if (!paramName) {
+        paramName = [];
+        fileInput.each(function() {
+          var input = $(this),
+            name = input.prop('name') || 'files[]',
+            i = (input.prop('files') || [1]).length;
+          while (i) {
+            paramName.push(name);
+            i -= 1;
+          }
+        });
+        if (!paramName.length) {
+          paramName = [fileInput.prop('name') || 'files[]'];
+        }
+      } else if (!$.isArray(paramName)) {
+        paramName = [paramName];
+      }
+      return paramName;
+    },
+
+    _initFormSettings: function(options) {
+      // Retrieve missing options from the input field and the
+      // associated form, if available:
+      if (!options.form || !options.form.length) {
+        options.form = $(options.fileInput.prop('form'));
+        // If the given file input doesn't have an associated form,
+        // use the default widget file input's form:
+        if (!options.form.length) {
+          options.form = $(this.options.fileInput.prop('form'));
+        }
+      }
+      options.paramName = this._getParamName(options);
+      if (!options.url) {
+        options.url = options.form.prop('action') || location.href;
+      }
+      // The HTTP request method must be "POST" or "PUT":
+      options.type = (
+        options.type ||
+        ($.type(options.form.prop('method')) === 'string' &&
+          options.form.prop('method')) ||
+        ''
+      ).toUpperCase();
+      if (
+        options.type !== 'POST' &&
+        options.type !== 'PUT' &&
+        options.type !== 'PATCH'
+      ) {
+        options.type = 'POST';
+      }
+      if (!options.formAcceptCharset) {
+        options.formAcceptCharset = options.form.attr('accept-charset');
+      }
+    },
+
+    _getAJAXSettings: function(data) {
+      var options = $.extend({}, this.options, data);
+      this._initFormSettings(options);
+      this._initDataSettings(options);
+      return options;
+    },
+
+    // jQuery 1.6 doesn't provide .state(),
+    // while jQuery 1.8+ removed .isRejected() and .isResolved():
+    _getDeferredState: function(deferred) {
+      if (deferred.state) {
+        return deferred.state();
+      }
+      if (deferred.isResolved()) {
+        return 'resolved';
+      }
+      if (deferred.isRejected()) {
+        return 'rejected';
+      }
+      return 'pending';
+    },
+
+    // Maps jqXHR callbacks to the equivalent
+    // methods of the given Promise object:
+    _enhancePromise: function(promise) {
+      promise.success = promise.done;
+      promise.error = promise.fail;
+      promise.complete = promise.always;
+      return promise;
+    },
+
+    // Creates and returns a Promise object enhanced with
+    // the jqXHR methods abort, success, error and complete:
+    _getXHRPromise: function(resolveOrReject, context, args) {
+      var dfd = $.Deferred(),
+        promise = dfd.promise();
+      // eslint-disable-next-line no-param-reassign
+      context = context || this.options.context || promise;
+      if (resolveOrReject === true) {
+        dfd.resolveWith(context, args);
+      } else if (resolveOrReject === false) {
+        dfd.rejectWith(context, args);
+      }
+      promise.abort = dfd.promise;
+      return this._enhancePromise(promise);
+    },
+
+    // Adds convenience methods to the data callback argument:
+    _addConvenienceMethods: function(e, data) {
+      var that = this,
+        getPromise = function(args) {
+          return $.Deferred()
+            .resolveWith(that, args)
+            .promise();
+        };
+      data.process = function(resolveFunc, rejectFunc) {
+        if (resolveFunc || rejectFunc) {
+          data._processQueue = this._processQueue = (
+            this._processQueue || getPromise([this])
+          )
+            .then(function() {
+              if (data.errorThrown) {
+                return $.Deferred()
+                  .rejectWith(that, [data])
+                  .promise();
+              }
+              return getPromise(arguments);
+            })
+            .then(resolveFunc, rejectFunc);
+        }
+        return this._processQueue || getPromise([this]);
+      };
+      data.submit = function() {
+        if (this.state() !== 'pending') {
+          data.jqXHR = this.jqXHR =
+            that._trigger(
+              'submit',
+              $.Event('submit', { delegatedEvent: e }),
+              this
+            ) !== false && that._onSend(e, this);
+        }
+        return this.jqXHR || that._getXHRPromise();
+      };
+      data.abort = function() {
+        if (this.jqXHR) {
+          return this.jqXHR.abort();
+        }
+        this.errorThrown = 'abort';
+        that._trigger('fail', null, this);
+        return that._getXHRPromise(false);
+      };
+      data.state = function() {
+        if (this.jqXHR) {
+          return that._getDeferredState(this.jqXHR);
+        }
+        if (this._processQueue) {
+          return that._getDeferredState(this._processQueue);
+        }
+      };
+      data.processing = function() {
+        return (
+          !this.jqXHR &&
+          this._processQueue &&
+          that._getDeferredState(this._processQueue) === 'pending'
+        );
+      };
+      data.progress = function() {
+        return this._progress;
+      };
+      data.response = function() {
+        return this._response;
+      };
+    },
+
+    // Parses the Range header from the server response
+    // and returns the uploaded bytes:
+    _getUploadedBytes: function(jqXHR) {
+      var range = jqXHR.getResponseHeader('Range'),
+        parts = range && range.split('-'),
+        upperBytesPos = parts && parts.length > 1 && parseInt(parts[1], 10);
+      return upperBytesPos && upperBytesPos + 1;
+    },
+
+    // Uploads a file in multiple, sequential requests
+    // by splitting the file up in multiple blob chunks.
+    // If the second parameter is true, only tests if the file
+    // should be uploaded in chunks, but does not invoke any
+    // upload requests:
+    _chunkedUpload: function(options, testOnly) {
+      options.uploadedBytes = options.uploadedBytes || 0;
+      var that = this,
+        file = options.files[0],
+        fs = file.size,
+        ub = options.uploadedBytes,
+        mcs = options.maxChunkSize || fs,
+        slice = this._blobSlice,
+        dfd = $.Deferred(),
+        promise = dfd.promise(),
+        jqXHR,
+        upload;
+      if (
+        !(
+          this._isXHRUpload(options) &&
+          slice &&
+          (ub || ($.type(mcs) === 'function' ? mcs(options) : mcs) < fs)
+        ) ||
+        options.data
+      ) {
+        return false;
+      }
+      if (testOnly) {
+        return true;
+      }
+      if (ub >= fs) {
+        file.error = options.i18n('uploadedBytes');
+        return this._getXHRPromise(false, options.context, [
+          null,
+          'error',
+          file.error
+        ]);
+      }
+      // The chunk upload method:
+      upload = function() {
+        // Clone the options object for each chunk upload:
+        var o = $.extend({}, options),
+          currentLoaded = o._progress.loaded;
+        o.blob = slice.call(
+          file,
+          ub,
+          ub + ($.type(mcs) === 'function' ? mcs(o) : mcs),
+          file.type
+        );
+        // Store the current chunk size, as the blob itself
+        // will be dereferenced after data processing:
+        o.chunkSize = o.blob.size;
+        // Expose the chunk bytes position range:
+        o.contentRange =
+          'bytes ' + ub + '-' + (ub + o.chunkSize - 1) + '/' + fs;
+        // Trigger chunkbeforesend to allow form data to be updated for this chunk
+        that._trigger('chunkbeforesend', null, o);
+        // Process the upload data (the blob and potential form data):
+        that._initXHRData(o);
+        // Add progress listeners for this chunk upload:
+        that._initProgressListener(o);
+        jqXHR = (
+          (that._trigger('chunksend', null, o) !== false && $.ajax(o)) ||
+          that._getXHRPromise(false, o.context)
+        )
+          .done(function(result, textStatus, jqXHR) {
+            ub = that._getUploadedBytes(jqXHR) || ub + o.chunkSize;
+            // Create a progress event if no final progress event
+            // with loaded equaling total has been triggered
+            // for this chunk:
+            if (currentLoaded + o.chunkSize - o._progress.loaded) {
+              that._onProgress(
+                $.Event('progress', {
+                  lengthComputable: true,
+                  loaded: ub - o.uploadedBytes,
+                  total: ub - o.uploadedBytes
+                }),
+                o
+              );
             }
-            return $.Deferred().resolve(files).promise();
-        },
-
-        _getFileInputFiles: function (fileInput) {
-            if (!(fileInput instanceof $) || fileInput.length === 1) {
-                return this._getSingleFileInputFiles(fileInput);
+            options.uploadedBytes = o.uploadedBytes = ub;
+            o.result = result;
+            o.textStatus = textStatus;
+            o.jqXHR = jqXHR;
+            that._trigger('chunkdone', null, o);
+            that._trigger('chunkalways', null, o);
+            if (ub < fs) {
+              // File upload not yet complete,
+              // continue with the next chunk:
+              upload();
+            } else {
+              dfd.resolveWith(o.context, [result, textStatus, jqXHR]);
             }
-            return $.when.apply(
-                $,
-                $.map(fileInput, this._getSingleFileInputFiles)
-            ).then(function () {
-                return Array.prototype.concat.apply(
-                    [],
-                    arguments
+          })
+          .fail(function(jqXHR, textStatus, errorThrown) {
+            o.jqXHR = jqXHR;
+            o.textStatus = textStatus;
+            o.errorThrown = errorThrown;
+            that._trigger('chunkfail', null, o);
+            that._trigger('chunkalways', null, o);
+            dfd.rejectWith(o.context, [jqXHR, textStatus, errorThrown]);
+          })
+          .always(function() {
+            that._deinitProgressListener(o);
+          });
+      };
+      this._enhancePromise(promise);
+      promise.abort = function() {
+        return jqXHR.abort();
+      };
+      upload();
+      return promise;
+    },
+
+    _beforeSend: function(e, data) {
+      if (this._active === 0) {
+        // the start callback is triggered when an upload starts
+        // and no other uploads are currently running,
+        // equivalent to the global ajaxStart event:
+        this._trigger('start');
+        // Set timer for global bitrate progress calculation:
+        this._bitrateTimer = new this._BitrateTimer();
+        // Reset the global progress values:
+        this._progress.loaded = this._progress.total = 0;
+        this._progress.bitrate = 0;
+      }
+      // Make sure the container objects for the .response() and
+      // .progress() methods on the data object are available
+      // and reset to their initial state:
+      this._initResponseObject(data);
+      this._initProgressObject(data);
+      data._progress.loaded = data.loaded = data.uploadedBytes || 0;
+      data._progress.total = data.total = this._getTotal(data.files) || 1;
+      data._progress.bitrate = data.bitrate = 0;
+      this._active += 1;
+      // Initialize the global progress values:
+      this._progress.loaded += data.loaded;
+      this._progress.total += data.total;
+    },
+
+    _onDone: function(result, textStatus, jqXHR, options) {
+      var total = options._progress.total,
+        response = options._response;
+      if (options._progress.loaded < total) {
+        // Create a progress event if no final progress event
+        // with loaded equaling total has been triggered:
+        this._onProgress(
+          $.Event('progress', {
+            lengthComputable: true,
+            loaded: total,
+            total: total
+          }),
+          options
+        );
+      }
+      response.result = options.result = result;
+      response.textStatus = options.textStatus = textStatus;
+      response.jqXHR = options.jqXHR = jqXHR;
+      this._trigger('done', null, options);
+    },
+
+    _onFail: function(jqXHR, textStatus, errorThrown, options) {
+      var response = options._response;
+      if (options.recalculateProgress) {
+        // Remove the failed (error or abort) file upload from
+        // the global progress calculation:
+        this._progress.loaded -= options._progress.loaded;
+        this._progress.total -= options._progress.total;
+      }
+      response.jqXHR = options.jqXHR = jqXHR;
+      response.textStatus = options.textStatus = textStatus;
+      response.errorThrown = options.errorThrown = errorThrown;
+      this._trigger('fail', null, options);
+    },
+
+    _onAlways: function(jqXHRorResult, textStatus, jqXHRorError, options) {
+      // jqXHRorResult, textStatus and jqXHRorError are added to the
+      // options object via done and fail callbacks
+      this._trigger('always', null, options);
+    },
+
+    _onSend: function(e, data) {
+      if (!data.submit) {
+        this._addConvenienceMethods(e, data);
+      }
+      var that = this,
+        jqXHR,
+        aborted,
+        slot,
+        pipe,
+        options = that._getAJAXSettings(data),
+        send = function() {
+          that._sending += 1;
+          // Set timer for bitrate progress calculation:
+          options._bitrateTimer = new that._BitrateTimer();
+          jqXHR =
+            jqXHR ||
+            (
+              ((aborted ||
+                that._trigger(
+                  'send',
+                  $.Event('send', { delegatedEvent: e }),
+                  options
+                ) === false) &&
+                that._getXHRPromise(false, options.context, aborted)) ||
+              that._chunkedUpload(options) ||
+              $.ajax(options)
+            )
+              .done(function(result, textStatus, jqXHR) {
+                that._onDone(result, textStatus, jqXHR, options);
+              })
+              .fail(function(jqXHR, textStatus, errorThrown) {
+                that._onFail(jqXHR, textStatus, errorThrown, options);
+              })
+              .always(function(jqXHRorResult, textStatus, jqXHRorError) {
+                that._deinitProgressListener(options);
+                that._onAlways(
+                  jqXHRorResult,
+                  textStatus,
+                  jqXHRorError,
+                  options
                 );
-            });
-        },
-
-        _onChange: function (e) {
-            var that = this,
-                data = {
-                    fileInput: $(e.target),
-                    form: $(e.target.form)
-                };
-            this._getFileInputFiles(data.fileInput).always(function (files) {
-                data.files = files;
-                if (that.options.replaceFileInput) {
-                    that._replaceFileInput(data);
-                }
-                if (that._trigger(
-                        'change',
-                        $.Event('change', {delegatedEvent: e}),
-                        data
-                    ) !== false) {
-                    that._onAdd(e, data);
-                }
-            });
-        },
-
-        _onPaste: function (e) {
-            var items = e.originalEvent && e.originalEvent.clipboardData &&
-                    e.originalEvent.clipboardData.items,
-                data = {files: []};
-            if (items && items.length) {
-                $.each(items, function (index, item) {
-                    var file = item.getAsFile && item.getAsFile();
-                    if (file) {
-                        data.files.push(file);
+                that._sending -= 1;
+                that._active -= 1;
+                if (
+                  options.limitConcurrentUploads &&
+                  options.limitConcurrentUploads > that._sending
+                ) {
+                  // Start the next queued upload,
+                  // that has not been aborted:
+                  var nextSlot = that._slots.shift();
+                  while (nextSlot) {
+                    if (that._getDeferredState(nextSlot) === 'pending') {
+                      nextSlot.resolve();
+                      break;
                     }
-                });
-                if (this._trigger(
-                        'paste',
-                        $.Event('paste', {delegatedEvent: e}),
-                        data
-                    ) !== false) {
-                    this._onAdd(e, data);
+                    nextSlot = that._slots.shift();
+                  }
                 }
+                if (that._active === 0) {
+                  // The stop callback is triggered when all uploads have
+                  // been completed, equivalent to the global ajaxStop event:
+                  that._trigger('stop');
+                }
+              });
+          return jqXHR;
+        };
+      this._beforeSend(e, options);
+      if (
+        this.options.sequentialUploads ||
+        (this.options.limitConcurrentUploads &&
+          this.options.limitConcurrentUploads <= this._sending)
+      ) {
+        if (this.options.limitConcurrentUploads > 1) {
+          slot = $.Deferred();
+          this._slots.push(slot);
+          pipe = slot.then(send);
+        } else {
+          this._sequence = this._sequence.then(send, send);
+          pipe = this._sequence;
+        }
+        // Return the piped Promise object, enhanced with an abort method,
+        // which is delegated to the jqXHR object of the current upload,
+        // and jqXHR callbacks mapped to the equivalent Promise methods:
+        pipe.abort = function() {
+          aborted = [undefined, 'abort', 'abort'];
+          if (!jqXHR) {
+            if (slot) {
+              slot.rejectWith(options.context, aborted);
             }
-        },
-
-        _onDrop: function (e) {
-            e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
-            var that = this,
-                dataTransfer = e.dataTransfer,
-                data = {};
-            if (dataTransfer && dataTransfer.files && dataTransfer.files.length) {
-                e.preventDefault();
-                this._getDroppedFiles(dataTransfer).always(function (files) {
-                    data.files = files;
-                    if (that._trigger(
-                            'drop',
-                            $.Event('drop', {delegatedEvent: e}),
-                            data
-                        ) !== false) {
-                        that._onAdd(e, data);
-                    }
-                });
-            }
-        },
-
-        _onDragOver: getDragHandler('dragover'),
-
-        _onDragEnter: getDragHandler('dragenter'),
-
-        _onDragLeave: getDragHandler('dragleave'),
-
-        _initEventHandlers: function () {
-            if (this._isXHRUpload(this.options)) {
-                this._on(this.options.dropZone, {
-                    dragover: this._onDragOver,
-                    drop: this._onDrop,
-                    // event.preventDefault() on dragenter is required for IE10+:
-                    dragenter: this._onDragEnter,
-                    // dragleave is not required, but added for completeness:
-                    dragleave: this._onDragLeave
-                });
-                this._on(this.options.pasteZone, {
-                    paste: this._onPaste
-                });
-            }
-            if ($.support.fileInput) {
-                this._on(this.options.fileInput, {
-                    change: this._onChange
-                });
+            return send();
+          }
+          return jqXHR.abort();
+        };
+        return this._enhancePromise(pipe);
+      }
+      return send();
+    },
+
+    _onAdd: function(e, data) {
+      var that = this,
+        result = true,
+        options = $.extend({}, this.options, data),
+        files = data.files,
+        filesLength = files.length,
+        limit = options.limitMultiFileUploads,
+        limitSize = options.limitMultiFileUploadSize,
+        overhead = options.limitMultiFileUploadSizeOverhead,
+        batchSize = 0,
+        paramName = this._getParamName(options),
+        paramNameSet,
+        paramNameSlice,
+        fileSet,
+        i,
+        j = 0;
+      if (!filesLength) {
+        return false;
+      }
+      if (limitSize && files[0].size === undefined) {
+        limitSize = undefined;
+      }
+      if (
+        !(options.singleFileUploads || limit || limitSize) ||
+        !this._isXHRUpload(options)
+      ) {
+        fileSet = [files];
+        paramNameSet = [paramName];
+      } else if (!(options.singleFileUploads || limitSize) && limit) {
+        fileSet = [];
+        paramNameSet = [];
+        for (i = 0; i < filesLength; i += limit) {
+          fileSet.push(files.slice(i, i + limit));
+          paramNameSlice = paramName.slice(i, i + limit);
+          if (!paramNameSlice.length) {
+            paramNameSlice = paramName;
+          }
+          paramNameSet.push(paramNameSlice);
+        }
+      } else if (!options.singleFileUploads && limitSize) {
+        fileSet = [];
+        paramNameSet = [];
+        for (i = 0; i < filesLength; i = i + 1) {
+          batchSize += files[i].size + overhead;
+          if (
+            i + 1 === filesLength ||
+            batchSize + files[i + 1].size + overhead > limitSize ||
+            (limit && i + 1 - j >= limit)
+          ) {
+            fileSet.push(files.slice(j, i + 1));
+            paramNameSlice = paramName.slice(j, i + 1);
+            if (!paramNameSlice.length) {
+              paramNameSlice = paramName;
             }
+            paramNameSet.push(paramNameSlice);
+            j = i + 1;
+            batchSize = 0;
+          }
+        }
+      } else {
+        paramNameSet = paramName;
+      }
+      data.originalFiles = files;
+      $.each(fileSet || files, function(index, element) {
+        var newData = $.extend({}, data);
+        newData.files = fileSet ? element : [element];
+        newData.paramName = paramNameSet[index];
+        that._initResponseObject(newData);
+        that._initProgressObject(newData);
+        that._addConvenienceMethods(e, newData);
+        result = that._trigger(
+          'add',
+          $.Event('add', { delegatedEvent: e }),
+          newData
+        );
+        return result;
+      });
+      return result;
+    },
+
+    _replaceFileInput: function(data) {
+      var input = data.fileInput,
+        inputClone = input.clone(true),
+        restoreFocus = input.is(document.activeElement);
+      // Add a reference for the new cloned file input to the data argument:
+      data.fileInputClone = inputClone;
+      $('<form></form>')
+        .append(inputClone)[0]
+        .reset();
+      // Detaching allows to insert the fileInput on another form
+      // without loosing the file input value:
+      input.after(inputClone).detach();
+      // If the fileInput had focus before it was detached,
+      // restore focus to the inputClone.
+      if (restoreFocus) {
+        inputClone.focus();
+      }
+      // Avoid memory leaks with the detached file input:
+      $.cleanData(input.unbind('remove'));
+      // Replace the original file input element in the fileInput
+      // elements set with the clone, which has been copied including
+      // event handlers:
+      this.options.fileInput = this.options.fileInput.map(function(i, el) {
+        if (el === input[0]) {
+          return inputClone[0];
+        }
+        return el;
+      });
+      // If the widget has been initialized on the file input itself,
+      // override this.element with the file input clone:
+      if (input[0] === this.element[0]) {
+        this.element = inputClone;
+      }
+    },
+
+    _handleFileTreeEntry: function(entry, path) {
+      var that = this,
+        dfd = $.Deferred(),
+        entries = [],
+        dirReader,
+        errorHandler = function(e) {
+          if (e && !e.entry) {
+            e.entry = entry;
+          }
+          // Since $.when returns immediately if one
+          // Deferred is rejected, we use resolve instead.
+          // This allows valid files and invalid items
+          // to be returned together in one set:
+          dfd.resolve([e]);
         },
-
-        _destroyEventHandlers: function () {
-            this._off(this.options.dropZone, 'dragenter dragleave dragover drop');
-            this._off(this.options.pasteZone, 'paste');
-            this._off(this.options.fileInput, 'change');
-        },
-
-        _destroy: function () {
-            this._destroyEventHandlers();
+        successHandler = function(entries) {
+          that
+            ._handleFileTreeEntries(entries, path + entry.name + '/')
+            .done(function(files) {
+              dfd.resolve(files);
+            })
+            .fail(errorHandler);
         },
-
-        _setOption: function (key, value) {
-            var reinit = $.inArray(key, this._specialOptions) !== -1;
-            if (reinit) {
-                this._destroyEventHandlers();
+        readEntries = function() {
+          dirReader.readEntries(function(results) {
+            if (!results.length) {
+              successHandler(entries);
+            } else {
+              entries = entries.concat(results);
+              readEntries();
             }
-            this._super(key, value);
-            if (reinit) {
-                this._initSpecialOptions();
-                this._initEventHandlers();
+          }, errorHandler);
+        };
+      // eslint-disable-next-line no-param-reassign
+      path = path || '';
+      if (entry.isFile) {
+        if (entry._file) {
+          // Workaround for Chrome bug #149735
+          entry._file.relativePath = path;
+          dfd.resolve(entry._file);
+        } else {
+          entry.file(function(file) {
+            file.relativePath = path;
+            dfd.resolve(file);
+          }, errorHandler);
+        }
+      } else if (entry.isDirectory) {
+        dirReader = entry.createReader();
+        readEntries();
+      } else {
+        // Return an empty list for file system items
+        // other than files or directories:
+        dfd.resolve([]);
+      }
+      return dfd.promise();
+    },
+
+    _handleFileTreeEntries: function(entries, path) {
+      var that = this;
+      return $.when
+        .apply(
+          $,
+          $.map(entries, function(entry) {
+            return that._handleFileTreeEntry(entry, path);
+          })
+        )
+        .then(function() {
+          return Array.prototype.concat.apply([], arguments);
+        });
+    },
+
+    _getDroppedFiles: function(dataTransfer) {
+      // eslint-disable-next-line no-param-reassign
+      dataTransfer = dataTransfer || {};
+      var items = dataTransfer.items;
+      if (
+        items &&
+        items.length &&
+        (items[0].webkitGetAsEntry || items[0].getAsEntry)
+      ) {
+        return this._handleFileTreeEntries(
+          $.map(items, function(item) {
+            var entry;
+            if (item.webkitGetAsEntry) {
+              entry = item.webkitGetAsEntry();
+              if (entry) {
+                // Workaround for Chrome bug #149735:
+                entry._file = item.getAsFile();
+              }
+              return entry;
             }
-        },
-
-        _initSpecialOptions: function () {
-            var options = this.options;
-            if (options.fileInput === undefined) {
-                options.fileInput = this.element.is('input[type="file"]') ?
-                        this.element : this.element.find('input[type="file"]');
-            } else if (!(options.fileInput instanceof $)) {
-                options.fileInput = $(options.fileInput);
+            return item.getAsEntry();
+          })
+        );
+      }
+      return $.Deferred()
+        .resolve($.makeArray(dataTransfer.files))
+        .promise();
+    },
+
+    _getSingleFileInputFiles: function(fileInput) {
+      // eslint-disable-next-line no-param-reassign
+      fileInput = $(fileInput);
+      var entries =
+          fileInput.prop('webkitEntries') || fileInput.prop('entries'),
+        files,
+        value;
+      if (entries && entries.length) {
+        return this._handleFileTreeEntries(entries);
+      }
+      files = $.makeArray(fileInput.prop('files'));
+      if (!files.length) {
+        value = fileInput.prop('value');
+        if (!value) {
+          return $.Deferred()
+            .resolve([])
+            .promise();
+        }
+        // If the files property is not available, the browser does not
+        // support the File API and we add a pseudo File object with
+        // the input value as name with path information removed:
+        files = [{ name: value.replace(/^.*\\/, '') }];
+      } else if (files[0].name === undefined && files[0].fileName) {
+        // File normalization for Safari 4 and Firefox 3:
+        $.each(files, function(index, file) {
+          file.name = file.fileName;
+          file.size = file.fileSize;
+        });
+      }
+      return $.Deferred()
+        .resolve(files)
+        .promise();
+    },
+
+    _getFileInputFiles: function(fileInput) {
+      if (!(fileInput instanceof $) || fileInput.length === 1) {
+        return this._getSingleFileInputFiles(fileInput);
+      }
+      return $.when
+        .apply($, $.map(fileInput, this._getSingleFileInputFiles))
+        .then(function() {
+          return Array.prototype.concat.apply([], arguments);
+        });
+    },
+
+    _onChange: function(e) {
+      var that = this,
+        data = {
+          fileInput: $(e.target),
+          form: $(e.target.form)
+        };
+      this._getFileInputFiles(data.fileInput).always(function(files) {
+        data.files = files;
+        if (that.options.replaceFileInput) {
+          that._replaceFileInput(data);
+        }
+        if (
+          that._trigger(
+            'change',
+            $.Event('change', { delegatedEvent: e }),
+            data
+          ) !== false
+        ) {
+          that._onAdd(e, data);
+        }
+      });
+    },
+
+    _onPaste: function(e) {
+      var items =
+          e.originalEvent &&
+          e.originalEvent.clipboardData &&
+          e.originalEvent.clipboardData.items,
+        data = { files: [] };
+      if (items && items.length) {
+        $.each(items, function(index, item) {
+          var file = item.getAsFile && item.getAsFile();
+          if (file) {
+            data.files.push(file);
+          }
+        });
+        if (
+          this._trigger(
+            'paste',
+            $.Event('paste', { delegatedEvent: e }),
+            data
+          ) !== false
+        ) {
+          this._onAdd(e, data);
+        }
+      }
+    },
+
+    _onDrop: function(e) {
+      e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer;
+      var that = this,
+        dataTransfer = e.dataTransfer,
+        data = {};
+      if (dataTransfer && dataTransfer.files && dataTransfer.files.length) {
+        e.preventDefault();
+        this._getDroppedFiles(dataTransfer).always(function(files) {
+          data.files = files;
+          if (
+            that._trigger(
+              'drop',
+              $.Event('drop', { delegatedEvent: e }),
+              data
+            ) !== false
+          ) {
+            that._onAdd(e, data);
+          }
+        });
+      }
+    },
+
+    _onDragOver: getDragHandler('dragover'),
+
+    _onDragEnter: getDragHandler('dragenter'),
+
+    _onDragLeave: getDragHandler('dragleave'),
+
+    _initEventHandlers: function() {
+      if (this._isXHRUpload(this.options)) {
+        this._on(this.options.dropZone, {
+          dragover: this._onDragOver,
+          drop: this._onDrop,
+          // event.preventDefault() on dragenter is required for IE10+:
+          dragenter: this._onDragEnter,
+          // dragleave is not required, but added for completeness:
+          dragleave: this._onDragLeave
+        });
+        this._on(this.options.pasteZone, {
+          paste: this._onPaste
+        });
+      }
+      if ($.support.fileInput) {
+        this._on(this.options.fileInput, {
+          change: this._onChange
+        });
+      }
+    },
+
+    _destroyEventHandlers: function() {
+      this._off(this.options.dropZone, 'dragenter dragleave dragover drop');
+      this._off(this.options.pasteZone, 'paste');
+      this._off(this.options.fileInput, 'change');
+    },
+
+    _destroy: function() {
+      this._destroyEventHandlers();
+    },
+
+    _setOption: function(key, value) {
+      var reinit = $.inArray(key, this._specialOptions) !== -1;
+      if (reinit) {
+        this._destroyEventHandlers();
+      }
+      this._super(key, value);
+      if (reinit) {
+        this._initSpecialOptions();
+        this._initEventHandlers();
+      }
+    },
+
+    _initSpecialOptions: function() {
+      var options = this.options;
+      if (options.fileInput === undefined) {
+        options.fileInput = this.element.is('input[type="file"]')
+          ? this.element
+          : this.element.find('input[type="file"]');
+      } else if (!(options.fileInput instanceof $)) {
+        options.fileInput = $(options.fileInput);
+      }
+      if (!(options.dropZone instanceof $)) {
+        options.dropZone = $(options.dropZone);
+      }
+      if (!(options.pasteZone instanceof $)) {
+        options.pasteZone = $(options.pasteZone);
+      }
+    },
+
+    _getRegExp: function(str) {
+      var parts = str.split('/'),
+        modifiers = parts.pop();
+      parts.shift();
+      return new RegExp(parts.join('/'), modifiers);
+    },
+
+    _isRegExpOption: function(key, value) {
+      return (
+        key !== 'url' &&
+        $.type(value) === 'string' &&
+        /^\/.*\/[igm]{0,3}$/.test(value)
+      );
+    },
+
+    _initDataAttributes: function() {
+      var that = this,
+        options = this.options,
+        data = this.element.data();
+      // Initialize options set via HTML5 data-attributes:
+      $.each(this.element[0].attributes, function(index, attr) {
+        var key = attr.name.toLowerCase(),
+          value;
+        if (/^data-/.test(key)) {
+          // Convert hyphen-ated key to camelCase:
+          key = key.slice(5).replace(/-[a-z]/g, function(str) {
+            return str.charAt(1).toUpperCase();
+          });
+          value = data[key];
+          if (that._isRegExpOption(key, value)) {
+            value = that._getRegExp(value);
+          }
+          options[key] = value;
+        }
+      });
+    },
+
+    _create: function() {
+      this._initDataAttributes();
+      this._initSpecialOptions();
+      this._slots = [];
+      this._sequence = this._getXHRPromise(true);
+      this._sending = this._active = 0;
+      this._initProgressObject(this);
+      this._initEventHandlers();
+    },
+
+    // This method is exposed to the widget API and allows to query
+    // the number of active uploads:
+    active: function() {
+      return this._active;
+    },
+
+    // This method is exposed to the widget API and allows to query
+    // the widget upload progress.
+    // It returns an object with loaded, total and bitrate properties
+    // for the running uploads:
+    progress: function() {
+      return this._progress;
+    },
+
+    // This method is exposed to the widget API and allows adding files
+    // using the fileupload API. The data parameter accepts an object which
+    // must have a files property and can contain additional options:
+    // .fileupload('add', {files: filesList});
+    add: function(data) {
+      var that = this;
+      if (!data || this.options.disabled) {
+        return;
+      }
+      if (data.fileInput && !data.files) {
+        this._getFileInputFiles(data.fileInput).always(function(files) {
+          data.files = files;
+          that._onAdd(null, data);
+        });
+      } else {
+        data.files = $.makeArray(data.files);
+        this._onAdd(null, data);
+      }
+    },
+
+    // This method is exposed to the widget API and allows sending files
+    // using the fileupload API. The data parameter accepts an object which
+    // must have a files or fileInput property and can contain additional options:
+    // .fileupload('send', {files: filesList});
+    // The method returns a Promise object for the file upload call.
+    send: function(data) {
+      if (data && !this.options.disabled) {
+        if (data.fileInput && !data.files) {
+          var that = this,
+            dfd = $.Deferred(),
+            promise = dfd.promise(),
+            jqXHR,
+            aborted;
+          promise.abort = function() {
+            aborted = true;
+            if (jqXHR) {
+              return jqXHR.abort();
             }
-            if (!(options.dropZone instanceof $)) {
-                options.dropZone = $(options.dropZone);
+            dfd.reject(null, 'abort', 'abort');
+            return promise;
+          };
+          this._getFileInputFiles(data.fileInput).always(function(files) {
+            if (aborted) {
+              return;
             }
-            if (!(options.pasteZone instanceof $)) {
-                options.pasteZone = $(options.pasteZone);
+            if (!files.length) {
+              dfd.reject();
+              return;
             }
-        },
-
-        _getRegExp: function (str) {
-            var parts = str.split('/'),
-                modifiers = parts.pop();
-            parts.shift();
-            return new RegExp(parts.join('/'), modifiers);
-        },
-
-        _isRegExpOption: function (key, value) {
-            return key !== 'url' && $.type(value) === 'string' &&
-                /^\/.*\/[igm]{0,3}$/.test(value);
-        },
-
-        _initDataAttributes: function () {
-            var that = this,
-                options = this.options,
-                data = this.element.data();
-            // Initialize options set via HTML5 data-attributes:
-            $.each(
-                this.element[0].attributes,
-                function (index, attr) {
-                    var key = attr.name.toLowerCase(),
-                        value;
-                    if (/^data-/.test(key)) {
-                        // Convert hyphen-ated key to camelCase:
-                        key = key.slice(5).replace(/-[a-z]/g, function (str) {
-                            return str.charAt(1).toUpperCase();
-                        });
-                        value = data[key];
-                        if (that._isRegExpOption(key, value)) {
-                            value = that._getRegExp(value);
-                        }
-                        options[key] = value;
-                    }
-                }
+            data.files = files;
+            jqXHR = that._onSend(null, data);
+            jqXHR.then(
+              function(result, textStatus, jqXHR) {
+                dfd.resolve(result, textStatus, jqXHR);
+              },
+              function(jqXHR, textStatus, errorThrown) {
+                dfd.reject(jqXHR, textStatus, errorThrown);
+              }
             );
-        },
-
-        _create: function () {
-            this._initDataAttributes();
-            this._initSpecialOptions();
-            this._slots = [];
-            this._sequence = this._getXHRPromise(true);
-            this._sending = this._active = 0;
-            this._initProgressObject(this);
-            this._initEventHandlers();
-        },
-
-        // This method is exposed to the widget API and allows to query
-        // the number of active uploads:
-        active: function () {
-            return this._active;
-        },
-
-        // This method is exposed to the widget API and allows to query
-        // the widget upload progress.
-        // It returns an object with loaded, total and bitrate properties
-        // for the running uploads:
-        progress: function () {
-            return this._progress;
-        },
-
-        // This method is exposed to the widget API and allows adding files
-        // using the fileupload API. The data parameter accepts an object which
-        // must have a files property and can contain additional options:
-        // .fileupload('add', {files: filesList});
-        add: function (data) {
-            var that = this;
-            if (!data || this.options.disabled) {
-                return;
-            }
-            if (data.fileInput && !data.files) {
-                this._getFileInputFiles(data.fileInput).always(function (files) {
-                    data.files = files;
-                    that._onAdd(null, data);
-                });
-            } else {
-                data.files = $.makeArray(data.files);
-                this._onAdd(null, data);
-            }
-        },
-
-        // This method is exposed to the widget API and allows sending files
-        // using the fileupload API. The data parameter accepts an object which
-        // must have a files or fileInput property and can contain additional options:
-        // .fileupload('send', {files: filesList});
-        // The method returns a Promise object for the file upload call.
-        send: function (data) {
-            if (data && !this.options.disabled) {
-                if (data.fileInput && !data.files) {
-                    var that = this,
-                        dfd = $.Deferred(),
-                        promise = dfd.promise(),
-                        jqXHR,
-                        aborted;
-                    promise.abort = function () {
-                        aborted = true;
-                        if (jqXHR) {
-                            return jqXHR.abort();
-                        }
-                        dfd.reject(null, 'abort', 'abort');
-                        return promise;
-                    };
-                    this._getFileInputFiles(data.fileInput).always(
-                        function (files) {
-                            if (aborted) {
-                                return;
-                            }
-                            if (!files.length) {
-                                dfd.reject();
-                                return;
-                            }
-                            data.files = files;
-                            jqXHR = that._onSend(null, data);
-                            jqXHR.then(
-                                function (result, textStatus, jqXHR) {
-                                    dfd.resolve(result, textStatus, jqXHR);
-                                },
-                                function (jqXHR, textStatus, errorThrown) {
-                                    dfd.reject(jqXHR, textStatus, errorThrown);
-                                }
-                            );
-                        }
-                    );
-                    return this._enhancePromise(promise);
-                }
-                data.files = $.makeArray(data.files);
-                if (data.files.length) {
-                    return this._onSend(null, data);
-                }
-            }
-            return this._getXHRPromise(false, data && data.context);
+          });
+          return this._enhancePromise(promise);
         }
-
-    });
-
-}));
+        data.files = $.makeArray(data.files);
+        if (data.files.length) {
+          return this._onSend(null, data);
+        }
+      }
+      return this._getXHRPromise(false, data && data.context);
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.iframe-transport.js b/vendor/blueimp/jquery-file-upload/js/jquery.iframe-transport.js
index 8d25c4641..b56690bea 100644
--- a/vendor/blueimp/jquery-file-upload/js/jquery.iframe-transport.js
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.iframe-transport.js
@@ -9,216 +9,213 @@
  * https://opensource.org/licenses/MIT
  */
 
-/* global define, require, window, document, JSON */
+/* global define, require */
 
-;(function (factory) {
-    'use strict';
-    if (typeof define === 'function' && define.amd) {
-        // Register as an anonymous AMD module:
-        define(['jquery'], factory);
-    } else if (typeof exports === 'object') {
-        // Node/CommonJS:
-        factory(require('jquery'));
-    } else {
-        // Browser globals:
-        factory(window.jQuery);
-    }
-}(function ($) {
-    'use strict';
+(function(factory) {
+  'use strict';
+  if (typeof define === 'function' && define.amd) {
+    // Register as an anonymous AMD module:
+    define(['jquery'], factory);
+  } else if (typeof exports === 'object') {
+    // Node/CommonJS:
+    factory(require('jquery'));
+  } else {
+    // Browser globals:
+    factory(window.jQuery);
+  }
+})(function($) {
+  'use strict';
 
-    // Helper variable to create unique names for the transport iframes:
-    var counter = 0,
-        jsonAPI = $,
-        jsonParse = 'parseJSON';
+  // Helper variable to create unique names for the transport iframes:
+  var counter = 0,
+    jsonAPI = $,
+    jsonParse = 'parseJSON';
 
-    if ('JSON' in window && 'parse' in JSON) {
-      jsonAPI = JSON;
-      jsonParse = 'parse';
-    }
+  if ('JSON' in window && 'parse' in JSON) {
+    jsonAPI = JSON;
+    jsonParse = 'parse';
+  }
 
-    // The iframe transport accepts four additional options:
-    // options.fileInput: a jQuery collection of file input fields
-    // options.paramName: the parameter name for the file form data,
-    //  overrides the name property of the file input field(s),
-    //  can be a string or an array of strings.
-    // options.formData: an array of objects with name and value properties,
-    //  equivalent to the return data of .serializeArray(), e.g.:
-    //  [{name: 'a', value: 1}, {name: 'b', value: 2}]
-    // options.initialIframeSrc: the URL of the initial iframe src,
-    //  by default set to "javascript:false;"
-    $.ajaxTransport('iframe', function (options) {
-        if (options.async) {
-            // javascript:false as initial iframe src
-            // prevents warning popups on HTTPS in IE6:
-            /*jshint scripturl: true */
-            var initialIframeSrc = options.initialIframeSrc || 'javascript:false;',
-            /*jshint scripturl: false */
-                form,
-                iframe,
-                addParamChar;
-            return {
-                send: function (_, completeCallback) {
-                    form = $('<form style="display:none;"></form>');
-                    form.attr('accept-charset', options.formAcceptCharset);
-                    addParamChar = /\?/.test(options.url) ? '&' : '?';
-                    // XDomainRequest only supports GET and POST:
-                    if (options.type === 'DELETE') {
-                        options.url = options.url + addParamChar + '_method=DELETE';
-                        options.type = 'POST';
-                    } else if (options.type === 'PUT') {
-                        options.url = options.url + addParamChar + '_method=PUT';
-                        options.type = 'POST';
-                    } else if (options.type === 'PATCH') {
-                        options.url = options.url + addParamChar + '_method=PATCH';
-                        options.type = 'POST';
-                    }
-                    // IE versions below IE8 cannot set the name property of
-                    // elements that have already been added to the DOM,
-                    // so we set the name along with the iframe HTML markup:
-                    counter += 1;
-                    iframe = $(
-                        '<iframe src="' + initialIframeSrc +
-                            '" name="iframe-transport-' + counter + '"></iframe>'
-                    ).bind('load', function () {
-                        var fileInputClones,
-                            paramNames = $.isArray(options.paramName) ?
-                                    options.paramName : [options.paramName];
-                        iframe
-                            .unbind('load')
-                            .bind('load', function () {
-                                var response;
-                                // Wrap in a try/catch block to catch exceptions thrown
-                                // when trying to access cross-domain iframe contents:
-                                try {
-                                    response = iframe.contents();
-                                    // Google Chrome and Firefox do not throw an
-                                    // exception when calling iframe.contents() on
-                                    // cross-domain requests, so we unify the response:
-                                    if (!response.length || !response[0].firstChild) {
-                                        throw new Error();
-                                    }
-                                } catch (e) {
-                                    response = undefined;
-                                }
-                                // The complete callback returns the
-                                // iframe content document as response object:
-                                completeCallback(
-                                    200,
-                                    'success',
-                                    {'iframe': response}
-                                );
-                                // Fix for IE endless progress bar activity bug
-                                // (happens on form submits to iframe targets):
-                                $('<iframe src="' + initialIframeSrc + '"></iframe>')
-                                    .appendTo(form);
-                                window.setTimeout(function () {
-                                    // Removing the form in a setTimeout call
-                                    // allows Chrome's developer tools to display
-                                    // the response result
-                                    form.remove();
-                                }, 0);
-                            });
-                        form
-                            .prop('target', iframe.prop('name'))
-                            .prop('action', options.url)
-                            .prop('method', options.type);
-                        if (options.formData) {
-                            $.each(options.formData, function (index, field) {
-                                $('<input type="hidden"/>')
-                                    .prop('name', field.name)
-                                    .val(field.value)
-                                    .appendTo(form);
-                            });
-                        }
-                        if (options.fileInput && options.fileInput.length &&
-                                options.type === 'POST') {
-                            fileInputClones = options.fileInput.clone();
-                            // Insert a clone for each file input field:
-                            options.fileInput.after(function (index) {
-                                return fileInputClones[index];
-                            });
-                            if (options.paramName) {
-                                options.fileInput.each(function (index) {
-                                    $(this).prop(
-                                        'name',
-                                        paramNames[index] || options.paramName
-                                    );
-                                });
-                            }
-                            // Appending the file input fields to the hidden form
-                            // removes them from their original location:
-                            form
-                                .append(options.fileInput)
-                                .prop('enctype', 'multipart/form-data')
-                                // enctype must be set as encoding for IE:
-                                .prop('encoding', 'multipart/form-data');
-                            // Remove the HTML5 form attribute from the input(s):
-                            options.fileInput.removeAttr('form');
-                        }
-                        form.submit();
-                        // Insert the file input fields at their original location
-                        // by replacing the clones with the originals:
-                        if (fileInputClones && fileInputClones.length) {
-                            options.fileInput.each(function (index, input) {
-                                var clone = $(fileInputClones[index]);
-                                // Restore the original name and form properties:
-                                $(input)
-                                    .prop('name', clone.prop('name'))
-                                    .attr('form', clone.attr('form'));
-                                clone.replaceWith(input);
-                            });
-                        }
-                    });
-                    form.append(iframe).appendTo(document.body);
-                },
-                abort: function () {
-                    if (iframe) {
-                        // javascript:false as iframe src aborts the request
-                        // and prevents warning popups on HTTPS in IE6.
-                        // concat is used to avoid the "Script URL" JSLint error:
-                        iframe
-                            .unbind('load')
-                            .prop('src', initialIframeSrc);
-                    }
-                    if (form) {
-                        form.remove();
-                    }
+  // The iframe transport accepts four additional options:
+  // options.fileInput: a jQuery collection of file input fields
+  // options.paramName: the parameter name for the file form data,
+  //  overrides the name property of the file input field(s),
+  //  can be a string or an array of strings.
+  // options.formData: an array of objects with name and value properties,
+  //  equivalent to the return data of .serializeArray(), e.g.:
+  //  [{name: 'a', value: 1}, {name: 'b', value: 2}]
+  // options.initialIframeSrc: the URL of the initial iframe src,
+  //  by default set to "javascript:false;"
+  $.ajaxTransport('iframe', function(options) {
+    if (options.async) {
+      // javascript:false as initial iframe src
+      // prevents warning popups on HTTPS in IE6:
+      // eslint-disable-next-line no-script-url
+      var initialIframeSrc = options.initialIframeSrc || 'javascript:false;',
+        form,
+        iframe,
+        addParamChar;
+      return {
+        send: function(_, completeCallback) {
+          form = $('<form style="display:none;"></form>');
+          form.attr('accept-charset', options.formAcceptCharset);
+          addParamChar = /\?/.test(options.url) ? '&' : '?';
+          // XDomainRequest only supports GET and POST:
+          if (options.type === 'DELETE') {
+            options.url = options.url + addParamChar + '_method=DELETE';
+            options.type = 'POST';
+          } else if (options.type === 'PUT') {
+            options.url = options.url + addParamChar + '_method=PUT';
+            options.type = 'POST';
+          } else if (options.type === 'PATCH') {
+            options.url = options.url + addParamChar + '_method=PATCH';
+            options.type = 'POST';
+          }
+          // IE versions below IE8 cannot set the name property of
+          // elements that have already been added to the DOM,
+          // so we set the name along with the iframe HTML markup:
+          counter += 1;
+          iframe = $(
+            '<iframe src="' +
+              initialIframeSrc +
+              '" name="iframe-transport-' +
+              counter +
+              '"></iframe>'
+          ).bind('load', function() {
+            var fileInputClones,
+              paramNames = $.isArray(options.paramName)
+                ? options.paramName
+                : [options.paramName];
+            iframe.unbind('load').bind('load', function() {
+              var response;
+              // Wrap in a try/catch block to catch exceptions thrown
+              // when trying to access cross-domain iframe contents:
+              try {
+                response = iframe.contents();
+                // Google Chrome and Firefox do not throw an
+                // exception when calling iframe.contents() on
+                // cross-domain requests, so we unify the response:
+                if (!response.length || !response[0].firstChild) {
+                  throw new Error();
                 }
-            };
-        }
-    });
-
-    // The iframe transport returns the iframe content document as response.
-    // The following adds converters from iframe to text, json, html, xml
-    // and script.
-    // Please note that the Content-Type for JSON responses has to be text/plain
-    // or text/html, if the browser doesn't include application/json in the
-    // Accept header, else IE will show a download dialog.
-    // The Content-Type for XML responses on the other hand has to be always
-    // application/xml or text/xml, so IE properly parses the XML response.
-    // See also
-    // https://github.com/blueimp/jQuery-File-Upload/wiki/Setup#content-type-negotiation
-    $.ajaxSetup({
-        converters: {
-            'iframe text': function (iframe) {
-                return iframe && $(iframe[0].body).text();
-            },
-            'iframe json': function (iframe) {
-                return iframe && jsonAPI[jsonParse]($(iframe[0].body).text());
-            },
-            'iframe html': function (iframe) {
-                return iframe && $(iframe[0].body).html();
-            },
-            'iframe xml': function (iframe) {
-                var xmlDoc = iframe && iframe[0];
-                return xmlDoc && $.isXMLDoc(xmlDoc) ? xmlDoc :
-                        $.parseXML((xmlDoc.XMLDocument && xmlDoc.XMLDocument.xml) ||
-                            $(xmlDoc.body).html());
-            },
-            'iframe script': function (iframe) {
-                return iframe && $.globalEval($(iframe[0].body).text());
+              } catch (e) {
+                response = undefined;
+              }
+              // The complete callback returns the
+              // iframe content document as response object:
+              completeCallback(200, 'success', { iframe: response });
+              // Fix for IE endless progress bar activity bug
+              // (happens on form submits to iframe targets):
+              $('<iframe src="' + initialIframeSrc + '"></iframe>').appendTo(
+                form
+              );
+              window.setTimeout(function() {
+                // Removing the form in a setTimeout call
+                // allows Chrome's developer tools to display
+                // the response result
+                form.remove();
+              }, 0);
+            });
+            form
+              .prop('target', iframe.prop('name'))
+              .prop('action', options.url)
+              .prop('method', options.type);
+            if (options.formData) {
+              $.each(options.formData, function(index, field) {
+                $('<input type="hidden"/>')
+                  .prop('name', field.name)
+                  .val(field.value)
+                  .appendTo(form);
+              });
             }
+            if (
+              options.fileInput &&
+              options.fileInput.length &&
+              options.type === 'POST'
+            ) {
+              fileInputClones = options.fileInput.clone();
+              // Insert a clone for each file input field:
+              options.fileInput.after(function(index) {
+                return fileInputClones[index];
+              });
+              if (options.paramName) {
+                options.fileInput.each(function(index) {
+                  $(this).prop('name', paramNames[index] || options.paramName);
+                });
+              }
+              // Appending the file input fields to the hidden form
+              // removes them from their original location:
+              form
+                .append(options.fileInput)
+                .prop('enctype', 'multipart/form-data')
+                // enctype must be set as encoding for IE:
+                .prop('encoding', 'multipart/form-data');
+              // Remove the HTML5 form attribute from the input(s):
+              options.fileInput.removeAttr('form');
+            }
+            form.submit();
+            // Insert the file input fields at their original location
+            // by replacing the clones with the originals:
+            if (fileInputClones && fileInputClones.length) {
+              options.fileInput.each(function(index, input) {
+                var clone = $(fileInputClones[index]);
+                // Restore the original name and form properties:
+                $(input)
+                  .prop('name', clone.prop('name'))
+                  .attr('form', clone.attr('form'));
+                clone.replaceWith(input);
+              });
+            }
+          });
+          form.append(iframe).appendTo(document.body);
+        },
+        abort: function() {
+          if (iframe) {
+            // javascript:false as iframe src aborts the request
+            // and prevents warning popups on HTTPS in IE6.
+            iframe.unbind('load').prop('src', initialIframeSrc);
+          }
+          if (form) {
+            form.remove();
+          }
         }
-    });
+      };
+    }
+  });
 
-}));
+  // The iframe transport returns the iframe content document as response.
+  // The following adds converters from iframe to text, json, html, xml
+  // and script.
+  // Please note that the Content-Type for JSON responses has to be text/plain
+  // or text/html, if the browser doesn't include application/json in the
+  // Accept header, else IE will show a download dialog.
+  // The Content-Type for XML responses on the other hand has to be always
+  // application/xml or text/xml, so IE properly parses the XML response.
+  // See also
+  // https://github.com/blueimp/jQuery-File-Upload/wiki/Setup#content-type-negotiation
+  $.ajaxSetup({
+    converters: {
+      'iframe text': function(iframe) {
+        return iframe && $(iframe[0].body).text();
+      },
+      'iframe json': function(iframe) {
+        return iframe && jsonAPI[jsonParse]($(iframe[0].body).text());
+      },
+      'iframe html': function(iframe) {
+        return iframe && $(iframe[0].body).html();
+      },
+      'iframe xml': function(iframe) {
+        var xmlDoc = iframe && iframe[0];
+        return xmlDoc && $.isXMLDoc(xmlDoc)
+          ? xmlDoc
+          : $.parseXML(
+              (xmlDoc.XMLDocument && xmlDoc.XMLDocument.xml) ||
+                $(xmlDoc.body).html()
+            );
+      },
+      'iframe script': function(iframe) {
+        return iframe && $.globalEval($(iframe[0].body).text());
+      }
+    }
+  });
+});
diff --git a/vendor/blueimp/jquery-file-upload/js/main.js b/vendor/blueimp/jquery-file-upload/js/main.js
deleted file mode 100644
index 0403682e7..000000000
--- a/vendor/blueimp/jquery-file-upload/js/main.js
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * jQuery File Upload Plugin JS Example
- * https://github.com/blueimp/jQuery-File-Upload
- *
- * Copyright 2010, Sebastian Tschan
- * https://blueimp.net
- *
- * Licensed under the MIT license:
- * https://opensource.org/licenses/MIT
- */
-
-/* global $, window */
-
-$(function () {
-    'use strict';
-
-    // Initialize the jQuery File Upload widget:
-    $('#fileupload').fileupload({
-        // Uncomment the following to send cross-domain cookies:
-        //xhrFields: {withCredentials: true},
-        url: 'server/php/'
-    });
-
-    // Enable iframe cross-domain access via redirect option:
-    $('#fileupload').fileupload(
-        'option',
-        'redirect',
-        window.location.href.replace(
-            /\/[^\/]*$/,
-            '/cors/result.html?%s'
-        )
-    );
-
-    if (window.location.hostname === 'blueimp.github.io') {
-        // Demo settings:
-        $('#fileupload').fileupload('option', {
-            url: '//jquery-file-upload.appspot.com/',
-            // Enable image resizing, except for Android and Opera,
-            // which actually support image resizing, but fail to
-            // send Blob objects via XHR requests:
-            disableImageResize: /Android(?!.*Chrome)|Opera/
-                .test(window.navigator.userAgent),
-            maxFileSize: 999000,
-            acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
-        });
-        // Upload server status check for browsers with CORS support:
-        if ($.support.cors) {
-            $.ajax({
-                url: '//jquery-file-upload.appspot.com/',
-                type: 'HEAD'
-            }).fail(function () {
-                $('<div class="alert alert-danger"/>')
-                    .text('Upload server currently unavailable - ' +
-                            new Date())
-                    .appendTo('#fileupload');
-            });
-        }
-    } else {
-        // Load existing files:
-        $('#fileupload').addClass('fileupload-processing');
-        $.ajax({
-            // Uncomment the following to send cross-domain cookies:
-            //xhrFields: {withCredentials: true},
-            url: $('#fileupload').fileupload('option', 'url'),
-            dataType: 'json',
-            context: $('#fileupload')[0]
-        }).always(function () {
-            $(this).removeClass('fileupload-processing');
-        }).done(function (result) {
-            $(this).fileupload('option', 'done')
-                .call(this, $.Event('done'), {result: result});
-        });
-    }
-
-});