Merge branch 'dev' of https://github.com/redmatrix/hubzilla into xdev_merge

1 files changed, 6326 insertions, 0 deletions

diff --git a/library/bootstrap/js/bootstrap.bundle.js b/library/bootstrap/js/bootstrap.bundle.js
new file mode 100644
index 000000000..f905c51de
--- /dev/null
+++ b/library/bootstrap/js/bootstrap.bundle.js
@@ -0,0 +1,6326 @@
+/*!
+  * Bootstrap v4.0.0-beta.3 (https://getbootstrap.com)
+  * Copyright 2011-2017 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+  */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('jquery')) :
+	typeof define === 'function' && define.amd ? define(['exports', 'jquery'], factory) :
+	(factory((global.bootstrap = {}),global.jQuery));
+}(this, (function (exports,$) { 'use strict';
+
+$ = $ && $.hasOwnProperty('default') ? $['default'] : $;
+
+function _defineProperties(target, props) {
+  for (var i = 0; i < props.length; i++) {
+    var descriptor = props[i];
+    descriptor.enumerable = descriptor.enumerable || false;
+    descriptor.configurable = true;
+    if ("value" in descriptor) descriptor.writable = true;
+    Object.defineProperty(target, descriptor.key, descriptor);
+  }
+}
+
+function _createClass(Constructor, protoProps, staticProps) {
+  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+  if (staticProps) _defineProperties(Constructor, staticProps);
+  return Constructor;
+}
+
+function _extends() {
+  _extends = Object.assign || function (target) {
+    for (var i = 1; i < arguments.length; i++) {
+      var source = arguments[i];
+
+      for (var key in source) {
+        if (Object.prototype.hasOwnProperty.call(source, key)) {
+          target[key] = source[key];
+        }
+      }
+    }
+
+    return target;
+  };
+
+  return _extends.apply(this, arguments);
+}
+
+function _inheritsLoose(subClass, superClass) {
+  subClass.prototype = Object.create(superClass.prototype);
+  subClass.prototype.constructor = subClass;
+  subClass.__proto__ = superClass;
+}
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): util.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Util = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Private TransitionEnd Helpers
+   * ------------------------------------------------------------------------
+   */
+  var transition = false;
+  var MAX_UID = 1000000; // shoutout AngusCroll (https://goo.gl/pxwQGp)
+
+  function toType(obj) {
+    return {}.toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase();
+  }
+
+  function getSpecialTransitionEndEvent() {
+    return {
+      bindType: transition.end,
+      delegateType: transition.end,
+      handle: function handle(event) {
+        if ($$$1(event.target).is(this)) {
+          return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
+        }
+
+        return undefined; // eslint-disable-line no-undefined
+      }
+    };
+  }
+
+  function transitionEndTest() {
+    if (window.QUnit) {
+      return false;
+    }
+
+    return {
+      end: 'transitionend'
+    };
+  }
+
+  function transitionEndEmulator(duration) {
+    var _this = this;
+
+    var called = false;
+    $$$1(this).one(Util.TRANSITION_END, function () {
+      called = true;
+    });
+    setTimeout(function () {
+      if (!called) {
+        Util.triggerTransitionEnd(_this);
+      }
+    }, duration);
+    return this;
+  }
+
+  function setTransitionEndSupport() {
+    transition = transitionEndTest();
+    $$$1.fn.emulateTransitionEnd = transitionEndEmulator;
+
+    if (Util.supportsTransitionEnd()) {
+      $$$1.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
+    }
+  }
+
+  function escapeId(selector) {
+    // we escape IDs in case of special selectors (selector = '#myId:something')
+    // $.escapeSelector does not exist in jQuery < 3
+    selector = typeof $$$1.escapeSelector === 'function' ? $$$1.escapeSelector(selector).substr(1) : selector.replace(/(:|\.|\[|\]|,|=|@)/g, '\\$1');
+    return selector;
+  }
+  /**
+   * --------------------------------------------------------------------------
+   * Public Util Api
+   * --------------------------------------------------------------------------
+   */
+
+
+  var Util = {
+    TRANSITION_END: 'bsTransitionEnd',
+    getUID: function getUID(prefix) {
+      do {
+        // eslint-disable-next-line no-bitwise
+        prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
+      } while (document.getElementById(prefix));
+
+      return prefix;
+    },
+    getSelectorFromElement: function getSelectorFromElement(element) {
+      var selector = element.getAttribute('data-target');
+
+      if (!selector || selector === '#') {
+        selector = element.getAttribute('href') || '';
+      } // if it's an ID
+
+
+      if (selector.charAt(0) === '#') {
+        selector = escapeId(selector);
+      }
+
+      try {
+        var $selector = $$$1(document).find(selector);
+        return $selector.length > 0 ? selector : null;
+      } catch (error) {
+        return null;
+      }
+    },
+    reflow: function reflow(element) {
+      return element.offsetHeight;
+    },
+    triggerTransitionEnd: function triggerTransitionEnd(element) {
+      $$$1(element).trigger(transition.end);
+    },
+    supportsTransitionEnd: function supportsTransitionEnd() {
+      return Boolean(transition);
+    },
+    isElement: function isElement(obj) {
+      return (obj[0] || obj).nodeType;
+    },
+    typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
+      for (var property in configTypes) {
+        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
+          var expectedTypes = configTypes[property];
+          var value = config[property];
+          var valueType = value && Util.isElement(value) ? 'element' : toType(value);
+
+          if (!new RegExp(expectedTypes).test(valueType)) {
+            throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
+          }
+        }
+      }
+    }
+  };
+  setTransitionEndSupport();
+  return Util;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): alert.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Alert = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'alert';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.alert';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var TRANSITION_DURATION = 150;
+  var Selector = {
+    DISMISS: '[data-dismiss="alert"]'
+  };
+  var Event = {
+    CLOSE: "close" + EVENT_KEY,
+    CLOSED: "closed" + EVENT_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    ALERT: 'alert',
+    FADE: 'fade',
+    SHOW: 'show'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Alert =
+  /*#__PURE__*/
+  function () {
+    function Alert(element) {
+      this._element = element;
+    } // getters
+
+
+    var _proto = Alert.prototype;
+
+    // public
+    _proto.close = function close(element) {
+      element = element || this._element;
+
+      var rootElement = this._getRootElement(element);
+
+      var customEvent = this._triggerCloseEvent(rootElement);
+
+      if (customEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      this._removeElement(rootElement);
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      this._element = null;
+    }; // private
+
+
+    _proto._getRootElement = function _getRootElement(element) {
+      var selector = Util.getSelectorFromElement(element);
+      var parent = false;
+
+      if (selector) {
+        parent = $$$1(selector)[0];
+      }
+
+      if (!parent) {
+        parent = $$$1(element).closest("." + ClassName.ALERT)[0];
+      }
+
+      return parent;
+    };
+
+    _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
+      var closeEvent = $$$1.Event(Event.CLOSE);
+      $$$1(element).trigger(closeEvent);
+      return closeEvent;
+    };
+
+    _proto._removeElement = function _removeElement(element) {
+      var _this = this;
+
+      $$$1(element).removeClass(ClassName.SHOW);
+
+      if (!Util.supportsTransitionEnd() || !$$$1(element).hasClass(ClassName.FADE)) {
+        this._destroyElement(element);
+
+        return;
+      }
+
+      $$$1(element).one(Util.TRANSITION_END, function (event) {
+        return _this._destroyElement(element, event);
+      }).emulateTransitionEnd(TRANSITION_DURATION);
+    };
+
+    _proto._destroyElement = function _destroyElement(element) {
+      $$$1(element).detach().trigger(Event.CLOSED).remove();
+    }; // static
+
+
+    Alert._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var $element = $$$1(this);
+        var data = $element.data(DATA_KEY);
+
+        if (!data) {
+          data = new Alert(this);
+          $element.data(DATA_KEY, data);
+        }
+
+        if (config === 'close') {
+          data[config](this);
+        }
+      });
+    };
+
+    Alert._handleDismiss = function _handleDismiss(alertInstance) {
+      return function (event) {
+        if (event) {
+          event.preventDefault();
+        }
+
+        alertInstance.close(this);
+      };
+    };
+
+    _createClass(Alert, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }]);
+    return Alert;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.CLICK_DATA_API, Selector.DISMISS, Alert._handleDismiss(new Alert()));
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Alert._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Alert;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Alert._jQueryInterface;
+  };
+
+  return Alert;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): button.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Button = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'button';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.button';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var ClassName = {
+    ACTIVE: 'active',
+    BUTTON: 'btn',
+    FOCUS: 'focus'
+  };
+  var Selector = {
+    DATA_TOGGLE_CARROT: '[data-toggle^="button"]',
+    DATA_TOGGLE: '[data-toggle="buttons"]',
+    INPUT: 'input',
+    ACTIVE: '.active',
+    BUTTON: '.btn'
+  };
+  var Event = {
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
+    FOCUS_BLUR_DATA_API: "focus" + EVENT_KEY + DATA_API_KEY + " " + ("blur" + EVENT_KEY + DATA_API_KEY)
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Button =
+  /*#__PURE__*/
+  function () {
+    function Button(element) {
+      this._element = element;
+    } // getters
+
+
+    var _proto = Button.prototype;
+
+    // public
+    _proto.toggle = function toggle() {
+      var triggerChangeEvent = true;
+      var addAriaPressed = true;
+      var rootElement = $$$1(this._element).closest(Selector.DATA_TOGGLE)[0];
+
+      if (rootElement) {
+        var input = $$$1(this._element).find(Selector.INPUT)[0];
+
+        if (input) {
+          if (input.type === 'radio') {
+            if (input.checked && $$$1(this._element).hasClass(ClassName.ACTIVE)) {
+              triggerChangeEvent = false;
+            } else {
+              var activeElement = $$$1(rootElement).find(Selector.ACTIVE)[0];
+
+              if (activeElement) {
+                $$$1(activeElement).removeClass(ClassName.ACTIVE);
+              }
+            }
+          }
+
+          if (triggerChangeEvent) {
+            if (input.hasAttribute('disabled') || rootElement.hasAttribute('disabled') || input.classList.contains('disabled') || rootElement.classList.contains('disabled')) {
+              return;
+            }
+
+            input.checked = !$$$1(this._element).hasClass(ClassName.ACTIVE);
+            $$$1(input).trigger('change');
+          }
+
+          input.focus();
+          addAriaPressed = false;
+        }
+      }
+
+      if (addAriaPressed) {
+        this._element.setAttribute('aria-pressed', !$$$1(this._element).hasClass(ClassName.ACTIVE));
+      }
+
+      if (triggerChangeEvent) {
+        $$$1(this._element).toggleClass(ClassName.ACTIVE);
+      }
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      this._element = null;
+    }; // static
+
+
+    Button._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        if (!data) {
+          data = new Button(this);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (config === 'toggle') {
+          data[config]();
+        }
+      });
+    };
+
+    _createClass(Button, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }]);
+    return Button;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
+    event.preventDefault();
+    var button = event.target;
+
+    if (!$$$1(button).hasClass(ClassName.BUTTON)) {
+      button = $$$1(button).closest(Selector.BUTTON);
+    }
+
+    Button._jQueryInterface.call($$$1(button), 'toggle');
+  }).on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
+    var button = $$$1(event.target).closest(Selector.BUTTON)[0];
+    $$$1(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type));
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Button._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Button;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Button._jQueryInterface;
+  };
+
+  return Button;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): carousel.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Carousel = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'carousel';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.carousel';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var TRANSITION_DURATION = 600;
+  var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key
+
+  var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key
+
+  var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch
+
+  var Default = {
+    interval: 5000,
+    keyboard: true,
+    slide: false,
+    pause: 'hover',
+    wrap: true
+  };
+  var DefaultType = {
+    interval: '(number|boolean)',
+    keyboard: 'boolean',
+    slide: '(boolean|string)',
+    pause: '(string|boolean)',
+    wrap: 'boolean'
+  };
+  var Direction = {
+    NEXT: 'next',
+    PREV: 'prev',
+    LEFT: 'left',
+    RIGHT: 'right'
+  };
+  var Event = {
+    SLIDE: "slide" + EVENT_KEY,
+    SLID: "slid" + EVENT_KEY,
+    KEYDOWN: "keydown" + EVENT_KEY,
+    MOUSEENTER: "mouseenter" + EVENT_KEY,
+    MOUSELEAVE: "mouseleave" + EVENT_KEY,
+    TOUCHEND: "touchend" + EVENT_KEY,
+    LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    CAROUSEL: 'carousel',
+    ACTIVE: 'active',
+    SLIDE: 'slide',
+    RIGHT: 'carousel-item-right',
+    LEFT: 'carousel-item-left',
+    NEXT: 'carousel-item-next',
+    PREV: 'carousel-item-prev',
+    ITEM: 'carousel-item'
+  };
+  var Selector = {
+    ACTIVE: '.active',
+    ACTIVE_ITEM: '.active.carousel-item',
+    ITEM: '.carousel-item',
+    NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
+    INDICATORS: '.carousel-indicators',
+    DATA_SLIDE: '[data-slide], [data-slide-to]',
+    DATA_RIDE: '[data-ride="carousel"]'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Carousel =
+  /*#__PURE__*/
+  function () {
+    function Carousel(element, config) {
+      this._items = null;
+      this._interval = null;
+      this._activeElement = null;
+      this._isPaused = false;
+      this._isSliding = false;
+      this.touchTimeout = null;
+      this._config = this._getConfig(config);
+      this._element = $$$1(element)[0];
+      this._indicatorsElement = $$$1(this._element).find(Selector.INDICATORS)[0];
+
+      this._addEventListeners();
+    } // getters
+
+
+    var _proto = Carousel.prototype;
+
+    // public
+    _proto.next = function next() {
+      if (!this._isSliding) {
+        this._slide(Direction.NEXT);
+      }
+    };
+
+    _proto.nextWhenVisible = function nextWhenVisible() {
+      // Don't call next when the page isn't visible
+      // or the carousel or its parent isn't visible
+      if (!document.hidden && $$$1(this._element).is(':visible') && $$$1(this._element).css('visibility') !== 'hidden') {
+        this.next();
+      }
+    };
+
+    _proto.prev = function prev() {
+      if (!this._isSliding) {
+        this._slide(Direction.PREV);
+      }
+    };
+
+    _proto.pause = function pause(event) {
+      if (!event) {
+        this._isPaused = true;
+      }
+
+      if ($$$1(this._element).find(Selector.NEXT_PREV)[0] && Util.supportsTransitionEnd()) {
+        Util.triggerTransitionEnd(this._element);
+        this.cycle(true);
+      }
+
+      clearInterval(this._interval);
+      this._interval = null;
+    };
+
+    _proto.cycle = function cycle(event) {
+      if (!event) {
+        this._isPaused = false;
+      }
+
+      if (this._interval) {
+        clearInterval(this._interval);
+        this._interval = null;
+      }
+
+      if (this._config.interval && !this._isPaused) {
+        this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
+      }
+    };
+
+    _proto.to = function to(index) {
+      var _this = this;
+
+      this._activeElement = $$$1(this._element).find(Selector.ACTIVE_ITEM)[0];
+
+      var activeIndex = this._getItemIndex(this._activeElement);
+
+      if (index > this._items.length - 1 || index < 0) {
+        return;
+      }
+
+      if (this._isSliding) {
+        $$$1(this._element).one(Event.SLID, function () {
+          return _this.to(index);
+        });
+        return;
+      }
+
+      if (activeIndex === index) {
+        this.pause();
+        this.cycle();
+        return;
+      }
+
+      var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;
+
+      this._slide(direction, this._items[index]);
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1(this._element).off(EVENT_KEY);
+      $$$1.removeData(this._element, DATA_KEY);
+      this._items = null;
+      this._config = null;
+      this._element = null;
+      this._interval = null;
+      this._isPaused = null;
+      this._isSliding = null;
+      this._activeElement = null;
+      this._indicatorsElement = null;
+    }; // private
+
+
+    _proto._getConfig = function _getConfig(config) {
+      config = _extends({}, Default, config);
+      Util.typeCheckConfig(NAME, config, DefaultType);
+      return config;
+    };
+
+    _proto._addEventListeners = function _addEventListeners() {
+      var _this2 = this;
+
+      if (this._config.keyboard) {
+        $$$1(this._element).on(Event.KEYDOWN, function (event) {
+          return _this2._keydown(event);
+        });
+      }
+
+      if (this._config.pause === 'hover') {
+        $$$1(this._element).on(Event.MOUSEENTER, function (event) {
+          return _this2.pause(event);
+        }).on(Event.MOUSELEAVE, function (event) {
+          return _this2.cycle(event);
+        });
+
+        if ('ontouchstart' in document.documentElement) {
+          // if it's a touch-enabled device, mouseenter/leave are fired as
+          // part of the mouse compatibility events on first tap - the carousel
+          // would stop cycling until user tapped out of it;
+          // here, we listen for touchend, explicitly pause the carousel
+          // (as if it's the second time we tap on it, mouseenter compat event
+          // is NOT fired) and after a timeout (to allow for mouse compatibility
+          // events to fire) we explicitly restart cycling
+          $$$1(this._element).on(Event.TOUCHEND, function () {
+            _this2.pause();
+
+            if (_this2.touchTimeout) {
+              clearTimeout(_this2.touchTimeout);
+            }
+
+            _this2.touchTimeout = setTimeout(function (event) {
+              return _this2.cycle(event);
+            }, TOUCHEVENT_COMPAT_WAIT + _this2._config.interval);
+          });
+        }
+      }
+    };
+
+    _proto._keydown = function _keydown(event) {
+      if (/input|textarea/i.test(event.target.tagName)) {
+        return;
+      }
+
+      switch (event.which) {
+        case ARROW_LEFT_KEYCODE:
+          event.preventDefault();
+          this.prev();
+          break;
+
+        case ARROW_RIGHT_KEYCODE:
+          event.preventDefault();
+          this.next();
+          break;
+
+        default:
+          return;
+      }
+    };
+
+    _proto._getItemIndex = function _getItemIndex(element) {
+      this._items = $$$1.makeArray($$$1(element).parent().find(Selector.ITEM));
+      return this._items.indexOf(element);
+    };
+
+    _proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
+      var isNextDirection = direction === Direction.NEXT;
+      var isPrevDirection = direction === Direction.PREV;
+
+      var activeIndex = this._getItemIndex(activeElement);
+
+      var lastItemIndex = this._items.length - 1;
+      var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;
+
+      if (isGoingToWrap && !this._config.wrap) {
+        return activeElement;
+      }
+
+      var delta = direction === Direction.PREV ? -1 : 1;
+      var itemIndex = (activeIndex + delta) % this._items.length;
+      return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
+    };
+
+    _proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
+      var targetIndex = this._getItemIndex(relatedTarget);
+
+      var fromIndex = this._getItemIndex($$$1(this._element).find(Selector.ACTIVE_ITEM)[0]);
+
+      var slideEvent = $$$1.Event(Event.SLIDE, {
+        relatedTarget: relatedTarget,
+        direction: eventDirectionName,
+        from: fromIndex,
+        to: targetIndex
+      });
+      $$$1(this._element).trigger(slideEvent);
+      return slideEvent;
+    };
+
+    _proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
+      if (this._indicatorsElement) {
+        $$$1(this._indicatorsElement).find(Selector.ACTIVE).removeClass(ClassName.ACTIVE);
+
+        var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
+
+        if (nextIndicator) {
+          $$$1(nextIndicator).addClass(ClassName.ACTIVE);
+        }
+      }
+    };
+
+    _proto._slide = function _slide(direction, element) {
+      var _this3 = this;
+
+      var activeElement = $$$1(this._element).find(Selector.ACTIVE_ITEM)[0];
+
+      var activeElementIndex = this._getItemIndex(activeElement);
+
+      var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);
+
+      var nextElementIndex = this._getItemIndex(nextElement);
+
+      var isCycling = Boolean(this._interval);
+      var directionalClassName;
+      var orderClassName;
+      var eventDirectionName;
+
+      if (direction === Direction.NEXT) {
+        directionalClassName = ClassName.LEFT;
+        orderClassName = ClassName.NEXT;
+        eventDirectionName = Direction.LEFT;
+      } else {
+        directionalClassName = ClassName.RIGHT;
+        orderClassName = ClassName.PREV;
+        eventDirectionName = Direction.RIGHT;
+      }
+
+      if (nextElement && $$$1(nextElement).hasClass(ClassName.ACTIVE)) {
+        this._isSliding = false;
+        return;
+      }
+
+      var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
+
+      if (slideEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      if (!activeElement || !nextElement) {
+        // some weirdness is happening, so we bail
+        return;
+      }
+
+      this._isSliding = true;
+
+      if (isCycling) {
+        this.pause();
+      }
+
+      this._setActiveIndicatorElement(nextElement);
+
+      var slidEvent = $$$1.Event(Event.SLID, {
+        relatedTarget: nextElement,
+        direction: eventDirectionName,
+        from: activeElementIndex,
+        to: nextElementIndex
+      });
+
+      if (Util.supportsTransitionEnd() && $$$1(this._element).hasClass(ClassName.SLIDE)) {
+        $$$1(nextElement).addClass(orderClassName);
+        Util.reflow(nextElement);
+        $$$1(activeElement).addClass(directionalClassName);
+        $$$1(nextElement).addClass(directionalClassName);
+        $$$1(activeElement).one(Util.TRANSITION_END, function () {
+          $$$1(nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(ClassName.ACTIVE);
+          $$$1(activeElement).removeClass(ClassName.ACTIVE + " " + orderClassName + " " + directionalClassName);
+          _this3._isSliding = false;
+          setTimeout(function () {
+            return $$$1(_this3._element).trigger(slidEvent);
+          }, 0);
+        }).emulateTransitionEnd(TRANSITION_DURATION);
+      } else {
+        $$$1(activeElement).removeClass(ClassName.ACTIVE);
+        $$$1(nextElement).addClass(ClassName.ACTIVE);
+        this._isSliding = false;
+        $$$1(this._element).trigger(slidEvent);
+      }
+
+      if (isCycling) {
+        this.cycle();
+      }
+    }; // static
+
+
+    Carousel._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        var _config = _extends({}, Default, $$$1(this).data());
+
+        if (typeof config === 'object') {
+          _config = _extends({}, _config, config);
+        }
+
+        var action = typeof config === 'string' ? config : _config.slide;
+
+        if (!data) {
+          data = new Carousel(this, _config);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'number') {
+          data.to(config);
+        } else if (typeof action === 'string') {
+          if (typeof data[action] === 'undefined') {
+            throw new Error("No method named \"" + action + "\"");
+          }
+
+          data[action]();
+        } else if (_config.interval) {
+          data.pause();
+          data.cycle();
+        }
+      });
+    };
+
+    Carousel._dataApiClickHandler = function _dataApiClickHandler(event) {
+      var selector = Util.getSelectorFromElement(this);
+
+      if (!selector) {
+        return;
+      }
+
+      var target = $$$1(selector)[0];
+
+      if (!target || !$$$1(target).hasClass(ClassName.CAROUSEL)) {
+        return;
+      }
+
+      var config = _extends({}, $$$1(target).data(), $$$1(this).data());
+      var slideIndex = this.getAttribute('data-slide-to');
+
+      if (slideIndex) {
+        config.interval = false;
+      }
+
+      Carousel._jQueryInterface.call($$$1(target), config);
+
+      if (slideIndex) {
+        $$$1(target).data(DATA_KEY).to(slideIndex);
+      }
+
+      event.preventDefault();
+    };
+
+    _createClass(Carousel, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }]);
+    return Carousel;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler);
+  $$$1(window).on(Event.LOAD_DATA_API, function () {
+    $$$1(Selector.DATA_RIDE).each(function () {
+      var $carousel = $$$1(this);
+
+      Carousel._jQueryInterface.call($carousel, $carousel.data());
+    });
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Carousel._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Carousel;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Carousel._jQueryInterface;
+  };
+
+  return Carousel;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): collapse.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Collapse = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'collapse';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.collapse';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var TRANSITION_DURATION = 600;
+  var Default = {
+    toggle: true,
+    parent: ''
+  };
+  var DefaultType = {
+    toggle: 'boolean',
+    parent: '(string|element)'
+  };
+  var Event = {
+    SHOW: "show" + EVENT_KEY,
+    SHOWN: "shown" + EVENT_KEY,
+    HIDE: "hide" + EVENT_KEY,
+    HIDDEN: "hidden" + EVENT_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    SHOW: 'show',
+    COLLAPSE: 'collapse',
+    COLLAPSING: 'collapsing',
+    COLLAPSED: 'collapsed'
+  };
+  var Dimension = {
+    WIDTH: 'width',
+    HEIGHT: 'height'
+  };
+  var Selector = {
+    ACTIVES: '.show, .collapsing',
+    DATA_TOGGLE: '[data-toggle="collapse"]'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Collapse =
+  /*#__PURE__*/
+  function () {
+    function Collapse(element, config) {
+      this._isTransitioning = false;
+      this._element = element;
+      this._config = this._getConfig(config);
+      this._triggerArray = $$$1.makeArray($$$1("[data-toggle=\"collapse\"][href=\"#" + element.id + "\"]," + ("[data-toggle=\"collapse\"][data-target=\"#" + element.id + "\"]")));
+      var tabToggles = $$$1(Selector.DATA_TOGGLE);
+
+      for (var i = 0; i < tabToggles.length; i++) {
+        var elem = tabToggles[i];
+        var selector = Util.getSelectorFromElement(elem);
+
+        if (selector !== null && $$$1(selector).filter(element).length > 0) {
+          this._triggerArray.push(elem);
+        }
+      }
+
+      this._parent = this._config.parent ? this._getParent() : null;
+
+      if (!this._config.parent) {
+        this._addAriaAndCollapsedClass(this._element, this._triggerArray);
+      }
+
+      if (this._config.toggle) {
+        this.toggle();
+      }
+    } // getters
+
+
+    var _proto = Collapse.prototype;
+
+    // public
+    _proto.toggle = function toggle() {
+      if ($$$1(this._element).hasClass(ClassName.SHOW)) {
+        this.hide();
+      } else {
+        this.show();
+      }
+    };
+
+    _proto.show = function show() {
+      var _this = this;
+
+      if (this._isTransitioning || $$$1(this._element).hasClass(ClassName.SHOW)) {
+        return;
+      }
+
+      var actives;
+      var activesData;
+
+      if (this._parent) {
+        actives = $$$1.makeArray($$$1(this._parent).children().children(Selector.ACTIVES));
+
+        if (!actives.length) {
+          actives = null;
+        }
+      }
+
+      if (actives) {
+        activesData = $$$1(actives).data(DATA_KEY);
+
+        if (activesData && activesData._isTransitioning) {
+          return;
+        }
+      }
+
+      var startEvent = $$$1.Event(Event.SHOW);
+      $$$1(this._element).trigger(startEvent);
+
+      if (startEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      if (actives) {
+        Collapse._jQueryInterface.call($$$1(actives), 'hide');
+
+        if (!activesData) {
+          $$$1(actives).data(DATA_KEY, null);
+        }
+      }
+
+      var dimension = this._getDimension();
+
+      $$$1(this._element).removeClass(ClassName.COLLAPSE).addClass(ClassName.COLLAPSING);
+      this._element.style[dimension] = 0;
+
+      if (this._triggerArray.length) {
+        $$$1(this._triggerArray).removeClass(ClassName.COLLAPSED).attr('aria-expanded', true);
+      }
+
+      this.setTransitioning(true);
+
+      var complete = function complete() {
+        $$$1(_this._element).removeClass(ClassName.COLLAPSING).addClass(ClassName.COLLAPSE).addClass(ClassName.SHOW);
+        _this._element.style[dimension] = '';
+
+        _this.setTransitioning(false);
+
+        $$$1(_this._element).trigger(Event.SHOWN);
+      };
+
+      if (!Util.supportsTransitionEnd()) {
+        complete();
+        return;
+      }
+
+      var capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
+      var scrollSize = "scroll" + capitalizedDimension;
+      $$$1(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);
+      this._element.style[dimension] = this._element[scrollSize] + "px";
+    };
+
+    _proto.hide = function hide() {
+      var _this2 = this;
+
+      if (this._isTransitioning || !$$$1(this._element).hasClass(ClassName.SHOW)) {
+        return;
+      }
+
+      var startEvent = $$$1.Event(Event.HIDE);
+      $$$1(this._element).trigger(startEvent);
+
+      if (startEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      var dimension = this._getDimension();
+
+      this._element.style[dimension] = this._element.getBoundingClientRect()[dimension] + "px";
+      Util.reflow(this._element);
+      $$$1(this._element).addClass(ClassName.COLLAPSING).removeClass(ClassName.COLLAPSE).removeClass(ClassName.SHOW);
+
+      if (this._triggerArray.length) {
+        for (var i = 0; i < this._triggerArray.length; i++) {
+          var trigger = this._triggerArray[i];
+          var selector = Util.getSelectorFromElement(trigger);
+
+          if (selector !== null) {
+            var $elem = $$$1(selector);
+
+            if (!$elem.hasClass(ClassName.SHOW)) {
+              $$$1(trigger).addClass(ClassName.COLLAPSED).attr('aria-expanded', false);
+            }
+          }
+        }
+      }
+
+      this.setTransitioning(true);
+
+      var complete = function complete() {
+        _this2.setTransitioning(false);
+
+        $$$1(_this2._element).removeClass(ClassName.COLLAPSING).addClass(ClassName.COLLAPSE).trigger(Event.HIDDEN);
+      };
+
+      this._element.style[dimension] = '';
+
+      if (!Util.supportsTransitionEnd()) {
+        complete();
+        return;
+      }
+
+      $$$1(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);
+    };
+
+    _proto.setTransitioning = function setTransitioning(isTransitioning) {
+      this._isTransitioning = isTransitioning;
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      this._config = null;
+      this._parent = null;
+      this._element = null;
+      this._triggerArray = null;
+      this._isTransitioning = null;
+    }; // private
+
+
+    _proto._getConfig = function _getConfig(config) {
+      config = _extends({}, Default, config);
+      config.toggle = Boolean(config.toggle); // coerce string values
+
+      Util.typeCheckConfig(NAME, config, DefaultType);
+      return config;
+    };
+
+    _proto._getDimension = function _getDimension() {
+      var hasWidth = $$$1(this._element).hasClass(Dimension.WIDTH);
+      return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT;
+    };
+
+    _proto._getParent = function _getParent() {
+      var _this3 = this;
+
+      var parent = null;
+
+      if (Util.isElement(this._config.parent)) {
+        parent = this._config.parent; // it's a jQuery object
+
+        if (typeof this._config.parent.jquery !== 'undefined') {
+          parent = this._config.parent[0];
+        }
+      } else {
+        parent = $$$1(this._config.parent)[0];
+      }
+
+      var selector = "[data-toggle=\"collapse\"][data-parent=\"" + this._config.parent + "\"]";
+      $$$1(parent).find(selector).each(function (i, element) {
+        _this3._addAriaAndCollapsedClass(Collapse._getTargetFromElement(element), [element]);
+      });
+      return parent;
+    };
+
+    _proto._addAriaAndCollapsedClass = function _addAriaAndCollapsedClass(element, triggerArray) {
+      if (element) {
+        var isOpen = $$$1(element).hasClass(ClassName.SHOW);
+
+        if (triggerArray.length) {
+          $$$1(triggerArray).toggleClass(ClassName.COLLAPSED, !isOpen).attr('aria-expanded', isOpen);
+        }
+      }
+    }; // static
+
+
+    Collapse._getTargetFromElement = function _getTargetFromElement(element) {
+      var selector = Util.getSelectorFromElement(element);
+      return selector ? $$$1(selector)[0] : null;
+    };
+
+    Collapse._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var $this = $$$1(this);
+        var data = $this.data(DATA_KEY);
+
+        var _config = _extends({}, Default, $this.data(), typeof config === 'object' && config);
+
+        if (!data && _config.toggle && /show|hide/.test(config)) {
+          _config.toggle = false;
+        }
+
+        if (!data) {
+          data = new Collapse(this, _config);
+          $this.data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config]();
+        }
+      });
+    };
+
+    _createClass(Collapse, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }]);
+    return Collapse;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+    // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
+    if (event.currentTarget.tagName === 'A') {
+      event.preventDefault();
+    }
+
+    var $trigger = $$$1(this);
+    var selector = Util.getSelectorFromElement(this);
+    $$$1(selector).each(function () {
+      var $target = $$$1(this);
+      var data = $target.data(DATA_KEY);
+      var config = data ? 'toggle' : $trigger.data();
+
+      Collapse._jQueryInterface.call($target, config);
+    });
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Collapse._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Collapse;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Collapse._jQueryInterface;
+  };
+
+  return Collapse;
+}($);
+
+/**!
+ * @fileOverview Kickass library to create and place poppers near their reference elements.
+ * @version 1.12.9
+ * @license
+ * Copyright (c) 2016 Federico Zivolo and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';
+var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
+var timeoutDuration = 0;
+for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
+  if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
+    timeoutDuration = 1;
+    break;
+  }
+}
+
+function microtaskDebounce(fn) {
+  var called = false;
+  return function () {
+    if (called) {
+      return;
+    }
+    called = true;
+    window.Promise.resolve().then(function () {
+      called = false;
+      fn();
+    });
+  };
+}
+
+function taskDebounce(fn) {
+  var scheduled = false;
+  return function () {
+    if (!scheduled) {
+      scheduled = true;
+      setTimeout(function () {
+        scheduled = false;
+        fn();
+      }, timeoutDuration);
+    }
+  };
+}
+
+var supportsMicroTasks = isBrowser && window.Promise;
+
+/**
+* Create a debounced version of a method, that's asynchronously deferred
+* but called in the minimum time possible.
+*
+* @method
+* @memberof Popper.Utils
+* @argument {Function} fn
+* @returns {Function}
+*/
+var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce;
+
+/**
+ * Check if the given variable is a function
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Any} functionToCheck - variable to check
+ * @returns {Boolean} answer to: is a function?
+ */
+function isFunction(functionToCheck) {
+  var getType = {};
+  return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
+}
+
+/**
+ * Get CSS computed property of the given element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Eement} element
+ * @argument {String} property
+ */
+function getStyleComputedProperty(element, property) {
+  if (element.nodeType !== 1) {
+    return [];
+  }
+  // NOTE: 1 DOM access here
+  var css = getComputedStyle(element, null);
+  return property ? css[property] : css;
+}
+
+/**
+ * Returns the parentNode or the host of the element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Element} parent
+ */
+function getParentNode(element) {
+  if (element.nodeName === 'HTML') {
+    return element;
+  }
+  return element.parentNode || element.host;
+}
+
+/**
+ * Returns the scrolling parent of the given element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Element} scroll parent
+ */
+function getScrollParent(element) {
+  // Return body, `getScroll` will take care to get the correct `scrollTop` from it
+  if (!element) {
+    return document.body;
+  }
+
+  switch (element.nodeName) {
+    case 'HTML':
+    case 'BODY':
+      return element.ownerDocument.body;
+    case '#document':
+      return element.body;
+  }
+
+  // Firefox want us to check `-x` and `-y` variations as well
+
+  var _getStyleComputedProp = getStyleComputedProperty(element),
+      overflow = _getStyleComputedProp.overflow,
+      overflowX = _getStyleComputedProp.overflowX,
+      overflowY = _getStyleComputedProp.overflowY;
+
+  if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
+    return element;
+  }
+
+  return getScrollParent(getParentNode(element));
+}
+
+/**
+ * Returns the offset parent of the given element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Element} offset parent
+ */
+function getOffsetParent(element) {
+  // NOTE: 1 DOM access here
+  var offsetParent = element && element.offsetParent;
+  var nodeName = offsetParent && offsetParent.nodeName;
+
+  if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
+    if (element) {
+      return element.ownerDocument.documentElement;
+    }
+
+    return document.documentElement;
+  }
+
+  // .offsetParent will return the closest TD or TABLE in case
+  // no offsetParent is present, I hate this job...
+  if (['TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
+    return getOffsetParent(offsetParent);
+  }
+
+  return offsetParent;
+}
+
+function isOffsetContainer(element) {
+  var nodeName = element.nodeName;
+
+  if (nodeName === 'BODY') {
+    return false;
+  }
+  return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
+}
+
+/**
+ * Finds the root node (document, shadowDOM root) of the given element
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} node
+ * @returns {Element} root node
+ */
+function getRoot(node) {
+  if (node.parentNode !== null) {
+    return getRoot(node.parentNode);
+  }
+
+  return node;
+}
+
+/**
+ * Finds the offset parent common to the two provided nodes
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element1
+ * @argument {Element} element2
+ * @returns {Element} common offset parent
+ */
+function findCommonOffsetParent(element1, element2) {
+  // This check is needed to avoid errors in case one of the elements isn't defined for any reason
+  if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
+    return document.documentElement;
+  }
+
+  // Here we make sure to give as "start" the element that comes first in the DOM
+  var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
+  var start = order ? element1 : element2;
+  var end = order ? element2 : element1;
+
+  // Get common ancestor container
+  var range = document.createRange();
+  range.setStart(start, 0);
+  range.setEnd(end, 0);
+  var commonAncestorContainer = range.commonAncestorContainer;
+
+  // Both nodes are inside #document
+
+  if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
+    if (isOffsetContainer(commonAncestorContainer)) {
+      return commonAncestorContainer;
+    }
+
+    return getOffsetParent(commonAncestorContainer);
+  }
+
+  // one of the nodes is inside shadowDOM, find which one
+  var element1root = getRoot(element1);
+  if (element1root.host) {
+    return findCommonOffsetParent(element1root.host, element2);
+  } else {
+    return findCommonOffsetParent(element1, getRoot(element2).host);
+  }
+}
+
+/**
+ * Gets the scroll value of the given element in the given side (top and left)
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @argument {String} side `top` or `left`
+ * @returns {number} amount of scrolled pixels
+ */
+function getScroll(element) {
+  var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';
+
+  var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
+  var nodeName = element.nodeName;
+
+  if (nodeName === 'BODY' || nodeName === 'HTML') {
+    var html = element.ownerDocument.documentElement;
+    var scrollingElement = element.ownerDocument.scrollingElement || html;
+    return scrollingElement[upperSide];
+  }
+
+  return element[upperSide];
+}
+
+/*
+ * Sum or subtract the element scroll values (left and top) from a given rect object
+ * @method
+ * @memberof Popper.Utils
+ * @param {Object} rect - Rect object you want to change
+ * @param {HTMLElement} element - The element from the function reads the scroll values
+ * @param {Boolean} subtract - set to true if you want to subtract the scroll values
+ * @return {Object} rect - The modifier rect object
+ */
+function includeScroll(rect, element) {
+  var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+
+  var scrollTop = getScroll(element, 'top');
+  var scrollLeft = getScroll(element, 'left');
+  var modifier = subtract ? -1 : 1;
+  rect.top += scrollTop * modifier;
+  rect.bottom += scrollTop * modifier;
+  rect.left += scrollLeft * modifier;
+  rect.right += scrollLeft * modifier;
+  return rect;
+}
+
+/*
+ * Helper to detect borders of a given element
+ * @method
+ * @memberof Popper.Utils
+ * @param {CSSStyleDeclaration} styles
+ * Result of `getStyleComputedProperty` on the given element
+ * @param {String} axis - `x` or `y`
+ * @return {number} borders - The borders size of the given axis
+ */
+
+function getBordersSize(styles, axis) {
+  var sideA = axis === 'x' ? 'Left' : 'Top';
+  var sideB = sideA === 'Left' ? 'Right' : 'Bottom';
+
+  return parseFloat(styles['border' + sideA + 'Width'], 10) + parseFloat(styles['border' + sideB + 'Width'], 10);
+}
+
+/**
+ * Tells if you are running Internet Explorer 10
+ * @method
+ * @memberof Popper.Utils
+ * @returns {Boolean} isIE10
+ */
+var isIE10 = undefined;
+
+var isIE10$1 = function () {
+  if (isIE10 === undefined) {
+    isIE10 = navigator.appVersion.indexOf('MSIE 10') !== -1;
+  }
+  return isIE10;
+};
+
+function getSize(axis, body, html, computedStyle) {
+  return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE10$1() ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
+}
+
+function getWindowSizes() {
+  var body = document.body;
+  var html = document.documentElement;
+  var computedStyle = isIE10$1() && getComputedStyle(html);
+
+  return {
+    height: getSize('Height', body, html, computedStyle),
+    width: getSize('Width', body, html, computedStyle)
+  };
+}
+
+var classCallCheck = function (instance, Constructor) {
+  if (!(instance instanceof Constructor)) {
+    throw new TypeError("Cannot call a class as a function");
+  }
+};
+
+var createClass = function () {
+  function defineProperties(target, props) {
+    for (var i = 0; i < props.length; i++) {
+      var descriptor = props[i];
+      descriptor.enumerable = descriptor.enumerable || false;
+      descriptor.configurable = true;
+      if ("value" in descriptor) descriptor.writable = true;
+      Object.defineProperty(target, descriptor.key, descriptor);
+    }
+  }
+
+  return function (Constructor, protoProps, staticProps) {
+    if (protoProps) defineProperties(Constructor.prototype, protoProps);
+    if (staticProps) defineProperties(Constructor, staticProps);
+    return Constructor;
+  };
+}();
+
+
+
+
+
+var defineProperty = function (obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+
+  return obj;
+};
+
+var _extends$1 = Object.assign || function (target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i];
+
+    for (var key in source) {
+      if (Object.prototype.hasOwnProperty.call(source, key)) {
+        target[key] = source[key];
+      }
+    }
+  }
+
+  return target;
+};
+
+/**
+ * Given element offsets, generate an output similar to getBoundingClientRect
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Object} offsets
+ * @returns {Object} ClientRect like output
+ */
+function getClientRect(offsets) {
+  return _extends$1({}, offsets, {
+    right: offsets.left + offsets.width,
+    bottom: offsets.top + offsets.height
+  });
+}
+
+/**
+ * Get bounding client rect of given element
+ * @method
+ * @memberof Popper.Utils
+ * @param {HTMLElement} element
+ * @return {Object} client rect
+ */
+function getBoundingClientRect(element) {
+  var rect = {};
+
+  // IE10 10 FIX: Please, don't ask, the element isn't
+  // considered in DOM in some circumstances...
+  // This isn't reproducible in IE10 compatibility mode of IE11
+  if (isIE10$1()) {
+    try {
+      rect = element.getBoundingClientRect();
+      var scrollTop = getScroll(element, 'top');
+      var scrollLeft = getScroll(element, 'left');
+      rect.top += scrollTop;
+      rect.left += scrollLeft;
+      rect.bottom += scrollTop;
+      rect.right += scrollLeft;
+    } catch (err) {}
+  } else {
+    rect = element.getBoundingClientRect();
+  }
+
+  var result = {
+    left: rect.left,
+    top: rect.top,
+    width: rect.right - rect.left,
+    height: rect.bottom - rect.top
+  };
+
+  // subtract scrollbar size from sizes
+  var sizes = element.nodeName === 'HTML' ? getWindowSizes() : {};
+  var width = sizes.width || element.clientWidth || result.right - result.left;
+  var height = sizes.height || element.clientHeight || result.bottom - result.top;
+
+  var horizScrollbar = element.offsetWidth - width;
+  var vertScrollbar = element.offsetHeight - height;
+
+  // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
+  // we make this check conditional for performance reasons
+  if (horizScrollbar || vertScrollbar) {
+    var styles = getStyleComputedProperty(element);
+    horizScrollbar -= getBordersSize(styles, 'x');
+    vertScrollbar -= getBordersSize(styles, 'y');
+
+    result.width -= horizScrollbar;
+    result.height -= vertScrollbar;
+  }
+
+  return getClientRect(result);
+}
+
+function getOffsetRectRelativeToArbitraryNode(children, parent) {
+  var isIE10 = isIE10$1();
+  var isHTML = parent.nodeName === 'HTML';
+  var childrenRect = getBoundingClientRect(children);
+  var parentRect = getBoundingClientRect(parent);
+  var scrollParent = getScrollParent(children);
+
+  var styles = getStyleComputedProperty(parent);
+  var borderTopWidth = parseFloat(styles.borderTopWidth, 10);
+  var borderLeftWidth = parseFloat(styles.borderLeftWidth, 10);
+
+  var offsets = getClientRect({
+    top: childrenRect.top - parentRect.top - borderTopWidth,
+    left: childrenRect.left - parentRect.left - borderLeftWidth,
+    width: childrenRect.width,
+    height: childrenRect.height
+  });
+  offsets.marginTop = 0;
+  offsets.marginLeft = 0;
+
+  // Subtract margins of documentElement in case it's being used as parent
+  // we do this only on HTML because it's the only element that behaves
+  // differently when margins are applied to it. The margins are included in
+  // the box of the documentElement, in the other cases not.
+  if (!isIE10 && isHTML) {
+    var marginTop = parseFloat(styles.marginTop, 10);
+    var marginLeft = parseFloat(styles.marginLeft, 10);
+
+    offsets.top -= borderTopWidth - marginTop;
+    offsets.bottom -= borderTopWidth - marginTop;
+    offsets.left -= borderLeftWidth - marginLeft;
+    offsets.right -= borderLeftWidth - marginLeft;
+
+    // Attach marginTop and marginLeft because in some circumstances we may need them
+    offsets.marginTop = marginTop;
+    offsets.marginLeft = marginLeft;
+  }
+
+  if (isIE10 ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
+    offsets = includeScroll(offsets, parent);
+  }
+
+  return offsets;
+}
+
+function getViewportOffsetRectRelativeToArtbitraryNode(element) {
+  var html = element.ownerDocument.documentElement;
+  var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
+  var width = Math.max(html.clientWidth, window.innerWidth || 0);
+  var height = Math.max(html.clientHeight, window.innerHeight || 0);
+
+  var scrollTop = getScroll(html);
+  var scrollLeft = getScroll(html, 'left');
+
+  var offset = {
+    top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
+    left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
+    width: width,
+    height: height
+  };
+
+  return getClientRect(offset);
+}
+
+/**
+ * Check if the given element is fixed or is inside a fixed parent
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @argument {Element} customContainer
+ * @returns {Boolean} answer to "isFixed?"
+ */
+function isFixed(element) {
+  var nodeName = element.nodeName;
+  if (nodeName === 'BODY' || nodeName === 'HTML') {
+    return false;
+  }
+  if (getStyleComputedProperty(element, 'position') === 'fixed') {
+    return true;
+  }
+  return isFixed(getParentNode(element));
+}
+
+/**
+ * Computed the boundaries limits and return them
+ * @method
+ * @memberof Popper.Utils
+ * @param {HTMLElement} popper
+ * @param {HTMLElement} reference
+ * @param {number} padding
+ * @param {HTMLElement} boundariesElement - Element used to define the boundaries
+ * @returns {Object} Coordinates of the boundaries
+ */
+function getBoundaries(popper, reference, padding, boundariesElement) {
+  // NOTE: 1 DOM access here
+  var boundaries = { top: 0, left: 0 };
+  var offsetParent = findCommonOffsetParent(popper, reference);
+
+  // Handle viewport case
+  if (boundariesElement === 'viewport') {
+    boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent);
+  } else {
+    // Handle other cases based on DOM element used as boundaries
+    var boundariesNode = void 0;
+    if (boundariesElement === 'scrollParent') {
+      boundariesNode = getScrollParent(getParentNode(reference));
+      if (boundariesNode.nodeName === 'BODY') {
+        boundariesNode = popper.ownerDocument.documentElement;
+      }
+    } else if (boundariesElement === 'window') {
+      boundariesNode = popper.ownerDocument.documentElement;
+    } else {
+      boundariesNode = boundariesElement;
+    }
+
+    var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent);
+
+    // In case of HTML, we need a different computation
+    if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
+      var _getWindowSizes = getWindowSizes(),
+          height = _getWindowSizes.height,
+          width = _getWindowSizes.width;
+
+      boundaries.top += offsets.top - offsets.marginTop;
+      boundaries.bottom = height + offsets.top;
+      boundaries.left += offsets.left - offsets.marginLeft;
+      boundaries.right = width + offsets.left;
+    } else {
+      // for all the other DOM elements, this one is good
+      boundaries = offsets;
+    }
+  }
+
+  // Add paddings
+  boundaries.left += padding;
+  boundaries.top += padding;
+  boundaries.right -= padding;
+  boundaries.bottom -= padding;
+
+  return boundaries;
+}
+
+function getArea(_ref) {
+  var width = _ref.width,
+      height = _ref.height;
+
+  return width * height;
+}
+
+/**
+ * Utility used to transform the `auto` placement to the placement with more
+ * available space.
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Object} data - The data object generated by update method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
+  var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
+
+  if (placement.indexOf('auto') === -1) {
+    return placement;
+  }
+
+  var boundaries = getBoundaries(popper, reference, padding, boundariesElement);
+
+  var rects = {
+    top: {
+      width: boundaries.width,
+      height: refRect.top - boundaries.top
+    },
+    right: {
+      width: boundaries.right - refRect.right,
+      height: boundaries.height
+    },
+    bottom: {
+      width: boundaries.width,
+      height: boundaries.bottom - refRect.bottom
+    },
+    left: {
+      width: refRect.left - boundaries.left,
+      height: boundaries.height
+    }
+  };
+
+  var sortedAreas = Object.keys(rects).map(function (key) {
+    return _extends$1({
+      key: key
+    }, rects[key], {
+      area: getArea(rects[key])
+    });
+  }).sort(function (a, b) {
+    return b.area - a.area;
+  });
+
+  var filteredAreas = sortedAreas.filter(function (_ref2) {
+    var width = _ref2.width,
+        height = _ref2.height;
+    return width >= popper.clientWidth && height >= popper.clientHeight;
+  });
+
+  var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;
+
+  var variation = placement.split('-')[1];
+
+  return computedPlacement + (variation ? '-' + variation : '');
+}
+
+/**
+ * Get offsets to the reference element
+ * @method
+ * @memberof Popper.Utils
+ * @param {Object} state
+ * @param {Element} popper - the popper element
+ * @param {Element} reference - the reference element (the popper will be relative to this)
+ * @returns {Object} An object containing the offsets which will be applied to the popper
+ */
+function getReferenceOffsets(state, popper, reference) {
+  var commonOffsetParent = findCommonOffsetParent(popper, reference);
+  return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent);
+}
+
+/**
+ * Get the outer sizes of the given element (offset size + margins)
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element
+ * @returns {Object} object containing width and height properties
+ */
+function getOuterSizes(element) {
+  var styles = getComputedStyle(element);
+  var x = parseFloat(styles.marginTop) + parseFloat(styles.marginBottom);
+  var y = parseFloat(styles.marginLeft) + parseFloat(styles.marginRight);
+  var result = {
+    width: element.offsetWidth + y,
+    height: element.offsetHeight + x
+  };
+  return result;
+}
+
+/**
+ * Get the opposite placement of the given one
+ * @method
+ * @memberof Popper.Utils
+ * @argument {String} placement
+ * @returns {String} flipped placement
+ */
+function getOppositePlacement(placement) {
+  var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
+  return placement.replace(/left|right|bottom|top/g, function (matched) {
+    return hash[matched];
+  });
+}
+
+/**
+ * Get offsets to the popper
+ * @method
+ * @memberof Popper.Utils
+ * @param {Object} position - CSS position the Popper will get applied
+ * @param {HTMLElement} popper - the popper element
+ * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
+ * @param {String} placement - one of the valid placement options
+ * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
+ */
+function getPopperOffsets(popper, referenceOffsets, placement) {
+  placement = placement.split('-')[0];
+
+  // Get popper node sizes
+  var popperRect = getOuterSizes(popper);
+
+  // Add position, width and height to our offsets object
+  var popperOffsets = {
+    width: popperRect.width,
+    height: popperRect.height
+  };
+
+  // depending by the popper placement we have to compute its offsets slightly differently
+  var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
+  var mainSide = isHoriz ? 'top' : 'left';
+  var secondarySide = isHoriz ? 'left' : 'top';
+  var measurement = isHoriz ? 'height' : 'width';
+  var secondaryMeasurement = !isHoriz ? 'height' : 'width';
+
+  popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
+  if (placement === secondarySide) {
+    popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
+  } else {
+    popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
+  }
+
+  return popperOffsets;
+}
+
+/**
+ * Mimics the `find` method of Array
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Array} arr
+ * @argument prop
+ * @argument value
+ * @returns index or -1
+ */
+function find(arr, check) {
+  // use native find if supported
+  if (Array.prototype.find) {
+    return arr.find(check);
+  }
+
+  // use `filter` to obtain the same behavior of `find`
+  return arr.filter(check)[0];
+}
+
+/**
+ * Return the index of the matching object
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Array} arr
+ * @argument prop
+ * @argument value
+ * @returns index or -1
+ */
+function findIndex(arr, prop, value) {
+  // use native findIndex if supported
+  if (Array.prototype.findIndex) {
+    return arr.findIndex(function (cur) {
+      return cur[prop] === value;
+    });
+  }
+
+  // use `find` + `indexOf` if `findIndex` isn't supported
+  var match = find(arr, function (obj) {
+    return obj[prop] === value;
+  });
+  return arr.indexOf(match);
+}
+
+/**
+ * Loop trough the list of modifiers and run them in order,
+ * each of them will then edit the data object.
+ * @method
+ * @memberof Popper.Utils
+ * @param {dataObject} data
+ * @param {Array} modifiers
+ * @param {String} ends - Optional modifier name used as stopper
+ * @returns {dataObject}
+ */
+function runModifiers(modifiers, data, ends) {
+  var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));
+
+  modifiersToRun.forEach(function (modifier) {
+    if (modifier['function']) {
+      // eslint-disable-line dot-notation
+      console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
+    }
+    var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation
+    if (modifier.enabled && isFunction(fn)) {
+      // Add properties to offsets to make them a complete clientRect object
+      // we do this before each modifier to make sure the previous one doesn't
+      // mess with these values
+      data.offsets.popper = getClientRect(data.offsets.popper);
+      data.offsets.reference = getClientRect(data.offsets.reference);
+
+      data = fn(data, modifier);
+    }
+  });
+
+  return data;
+}
+
+/**
+ * Updates the position of the popper, computing the new offsets and applying
+ * the new style.<br />
+ * Prefer `scheduleUpdate` over `update` because of performance reasons.
+ * @method
+ * @memberof Popper
+ */
+function update() {
+  // if popper is destroyed, don't perform any further update
+  if (this.state.isDestroyed) {
+    return;
+  }
+
+  var data = {
+    instance: this,
+    styles: {},
+    arrowStyles: {},
+    attributes: {},
+    flipped: false,
+    offsets: {}
+  };
+
+  // compute reference element offsets
+  data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference);
+
+  // compute auto placement, store placement inside the data object,
+  // modifiers will be able to edit `placement` if needed
+  // and refer to originalPlacement to know the original value
+  data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);
+
+  // store the computed placement inside `originalPlacement`
+  data.originalPlacement = data.placement;
+
+  // compute the popper offsets
+  data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
+  data.offsets.popper.position = 'absolute';
+
+  // run the modifiers
+  data = runModifiers(this.modifiers, data);
+
+  // the first `update` will call `onCreate` callback
+  // the other ones will call `onUpdate` callback
+  if (!this.state.isCreated) {
+    this.state.isCreated = true;
+    this.options.onCreate(data);
+  } else {
+    this.options.onUpdate(data);
+  }
+}
+
+/**
+ * Helper used to know if the given modifier is enabled.
+ * @method
+ * @memberof Popper.Utils
+ * @returns {Boolean}
+ */
+function isModifierEnabled(modifiers, modifierName) {
+  return modifiers.some(function (_ref) {
+    var name = _ref.name,
+        enabled = _ref.enabled;
+    return enabled && name === modifierName;
+  });
+}
+
+/**
+ * Get the prefixed supported property name
+ * @method
+ * @memberof Popper.Utils
+ * @argument {String} property (camelCase)
+ * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
+ */
+function getSupportedPropertyName(property) {
+  var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
+  var upperProp = property.charAt(0).toUpperCase() + property.slice(1);
+
+  for (var i = 0; i < prefixes.length - 1; i++) {
+    var prefix = prefixes[i];
+    var toCheck = prefix ? '' + prefix + upperProp : property;
+    if (typeof document.body.style[toCheck] !== 'undefined') {
+      return toCheck;
+    }
+  }
+  return null;
+}
+
+/**
+ * Destroy the popper
+ * @method
+ * @memberof Popper
+ */
+function destroy() {
+  this.state.isDestroyed = true;
+
+  // touch DOM only if `applyStyle` modifier is enabled
+  if (isModifierEnabled(this.modifiers, 'applyStyle')) {
+    this.popper.removeAttribute('x-placement');
+    this.popper.style.left = '';
+    this.popper.style.position = '';
+    this.popper.style.top = '';
+    this.popper.style[getSupportedPropertyName('transform')] = '';
+  }
+
+  this.disableEventListeners();
+
+  // remove the popper if user explicity asked for the deletion on destroy
+  // do not use `remove` because IE11 doesn't support it
+  if (this.options.removeOnDestroy) {
+    this.popper.parentNode.removeChild(this.popper);
+  }
+  return this;
+}
+
+/**
+ * Get the window associated with the element
+ * @argument {Element} element
+ * @returns {Window}
+ */
+function getWindow(element) {
+  var ownerDocument = element.ownerDocument;
+  return ownerDocument ? ownerDocument.defaultView : window;
+}
+
+function attachToScrollParents(scrollParent, event, callback, scrollParents) {
+  var isBody = scrollParent.nodeName === 'BODY';
+  var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;
+  target.addEventListener(event, callback, { passive: true });
+
+  if (!isBody) {
+    attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
+  }
+  scrollParents.push(target);
+}
+
+/**
+ * Setup needed event listeners used to update the popper position
+ * @method
+ * @memberof Popper.Utils
+ * @private
+ */
+function setupEventListeners(reference, options, state, updateBound) {
+  // Resize event listener on window
+  state.updateBound = updateBound;
+  getWindow(reference).addEventListener('resize', state.updateBound, { passive: true });
+
+  // Scroll event listener on scroll parents
+  var scrollElement = getScrollParent(reference);
+  attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
+  state.scrollElement = scrollElement;
+  state.eventsEnabled = true;
+
+  return state;
+}
+
+/**
+ * It will add resize/scroll events and start recalculating
+ * position of the popper element when they are triggered.
+ * @method
+ * @memberof Popper
+ */
+function enableEventListeners() {
+  if (!this.state.eventsEnabled) {
+    this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
+  }
+}
+
+/**
+ * Remove event listeners used to update the popper position
+ * @method
+ * @memberof Popper.Utils
+ * @private
+ */
+function removeEventListeners(reference, state) {
+  // Remove resize event listener on window
+  getWindow(reference).removeEventListener('resize', state.updateBound);
+
+  // Remove scroll event listener on scroll parents
+  state.scrollParents.forEach(function (target) {
+    target.removeEventListener('scroll', state.updateBound);
+  });
+
+  // Reset state
+  state.updateBound = null;
+  state.scrollParents = [];
+  state.scrollElement = null;
+  state.eventsEnabled = false;
+  return state;
+}
+
+/**
+ * It will remove resize/scroll events and won't recalculate popper position
+ * when they are triggered. It also won't trigger onUpdate callback anymore,
+ * unless you call `update` method manually.
+ * @method
+ * @memberof Popper
+ */
+function disableEventListeners() {
+  if (this.state.eventsEnabled) {
+    cancelAnimationFrame(this.scheduleUpdate);
+    this.state = removeEventListeners(this.reference, this.state);
+  }
+}
+
+/**
+ * Tells if a given input is a number
+ * @method
+ * @memberof Popper.Utils
+ * @param {*} input to check
+ * @return {Boolean}
+ */
+function isNumeric(n) {
+  return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
+}
+
+/**
+ * Set the style to the given popper
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element - Element to apply the style to
+ * @argument {Object} styles
+ * Object with a list of properties and values which will be applied to the element
+ */
+function setStyles(element, styles) {
+  Object.keys(styles).forEach(function (prop) {
+    var unit = '';
+    // add unit if the value is numeric and is one of the following
+    if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
+      unit = 'px';
+    }
+    element.style[prop] = styles[prop] + unit;
+  });
+}
+
+/**
+ * Set the attributes to the given popper
+ * @method
+ * @memberof Popper.Utils
+ * @argument {Element} element - Element to apply the attributes to
+ * @argument {Object} styles
+ * Object with a list of properties and values which will be applied to the element
+ */
+function setAttributes(element, attributes) {
+  Object.keys(attributes).forEach(function (prop) {
+    var value = attributes[prop];
+    if (value !== false) {
+      element.setAttribute(prop, attributes[prop]);
+    } else {
+      element.removeAttribute(prop);
+    }
+  });
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by `update` method
+ * @argument {Object} data.styles - List of style properties - values to apply to popper element
+ * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The same data object
+ */
+function applyStyle(data) {
+  // any property present in `data.styles` will be applied to the popper,
+  // in this way we can make the 3rd party modifiers add custom styles to it
+  // Be aware, modifiers could override the properties defined in the previous
+  // lines of this modifier!
+  setStyles(data.instance.popper, data.styles);
+
+  // any property present in `data.attributes` will be applied to the popper,
+  // they will be set as HTML attributes of the element
+  setAttributes(data.instance.popper, data.attributes);
+
+  // if arrowElement is defined and arrowStyles has some properties
+  if (data.arrowElement && Object.keys(data.arrowStyles).length) {
+    setStyles(data.arrowElement, data.arrowStyles);
+  }
+
+  return data;
+}
+
+/**
+ * Set the x-placement attribute before everything else because it could be used
+ * to add margins to the popper margins needs to be calculated to get the
+ * correct popper offsets.
+ * @method
+ * @memberof Popper.modifiers
+ * @param {HTMLElement} reference - The reference element used to position the popper
+ * @param {HTMLElement} popper - The HTML element used as popper.
+ * @param {Object} options - Popper.js options
+ */
+function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
+  // compute reference element offsets
+  var referenceOffsets = getReferenceOffsets(state, popper, reference);
+
+  // compute auto placement, store placement inside the data object,
+  // modifiers will be able to edit `placement` if needed
+  // and refer to originalPlacement to know the original value
+  var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);
+
+  popper.setAttribute('x-placement', placement);
+
+  // Apply `position` to popper before anything else because
+  // without the position applied we can't guarantee correct computations
+  setStyles(popper, { position: 'absolute' });
+
+  return options;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by `update` method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function computeStyle(data, options) {
+  var x = options.x,
+      y = options.y;
+  var popper = data.offsets.popper;
+
+  // Remove this legacy support in Popper.js v2
+
+  var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
+    return modifier.name === 'applyStyle';
+  }).gpuAcceleration;
+  if (legacyGpuAccelerationOption !== undefined) {
+    console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
+  }
+  var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;
+
+  var offsetParent = getOffsetParent(data.instance.popper);
+  var offsetParentRect = getBoundingClientRect(offsetParent);
+
+  // Styles
+  var styles = {
+    position: popper.position
+  };
+
+  // floor sides to avoid blurry text
+  var offsets = {
+    left: Math.floor(popper.left),
+    top: Math.floor(popper.top),
+    bottom: Math.floor(popper.bottom),
+    right: Math.floor(popper.right)
+  };
+
+  var sideA = x === 'bottom' ? 'top' : 'bottom';
+  var sideB = y === 'right' ? 'left' : 'right';
+
+  // if gpuAcceleration is set to `true` and transform is supported,
+  //  we use `translate3d` to apply the position to the popper we
+  // automatically use the supported prefixed version if needed
+  var prefixedProperty = getSupportedPropertyName('transform');
+
+  // now, let's make a step back and look at this code closely (wtf?)
+  // If the content of the popper grows once it's been positioned, it
+  // may happen that the popper gets misplaced because of the new content
+  // overflowing its reference element
+  // To avoid this problem, we provide two options (x and y), which allow
+  // the consumer to define the offset origin.
+  // If we position a popper on top of a reference element, we can set
+  // `x` to `top` to make the popper grow towards its top instead of
+  // its bottom.
+  var left = void 0,
+      top = void 0;
+  if (sideA === 'bottom') {
+    top = -offsetParentRect.height + offsets.bottom;
+  } else {
+    top = offsets.top;
+  }
+  if (sideB === 'right') {
+    left = -offsetParentRect.width + offsets.right;
+  } else {
+    left = offsets.left;
+  }
+  if (gpuAcceleration && prefixedProperty) {
+    styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
+    styles[sideA] = 0;
+    styles[sideB] = 0;
+    styles.willChange = 'transform';
+  } else {
+    // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
+    var invertTop = sideA === 'bottom' ? -1 : 1;
+    var invertLeft = sideB === 'right' ? -1 : 1;
+    styles[sideA] = top * invertTop;
+    styles[sideB] = left * invertLeft;
+    styles.willChange = sideA + ', ' + sideB;
+  }
+
+  // Attributes
+  var attributes = {
+    'x-placement': data.placement
+  };
+
+  // Update `data` attributes, styles and arrowStyles
+  data.attributes = _extends$1({}, attributes, data.attributes);
+  data.styles = _extends$1({}, styles, data.styles);
+  data.arrowStyles = _extends$1({}, data.offsets.arrow, data.arrowStyles);
+
+  return data;
+}
+
+/**
+ * Helper used to know if the given modifier depends from another one.<br />
+ * It checks if the needed modifier is listed and enabled.
+ * @method
+ * @memberof Popper.Utils
+ * @param {Array} modifiers - list of modifiers
+ * @param {String} requestingName - name of requesting modifier
+ * @param {String} requestedName - name of requested modifier
+ * @returns {Boolean}
+ */
+function isModifierRequired(modifiers, requestingName, requestedName) {
+  var requesting = find(modifiers, function (_ref) {
+    var name = _ref.name;
+    return name === requestingName;
+  });
+
+  var isRequired = !!requesting && modifiers.some(function (modifier) {
+    return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
+  });
+
+  if (!isRequired) {
+    var _requesting = '`' + requestingName + '`';
+    var requested = '`' + requestedName + '`';
+    console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
+  }
+  return isRequired;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by update method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function arrow(data, options) {
+  var _data$offsets$arrow;
+
+  // arrow depends on keepTogether in order to work
+  if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
+    return data;
+  }
+
+  var arrowElement = options.element;
+
+  // if arrowElement is a string, suppose it's a CSS selector
+  if (typeof arrowElement === 'string') {
+    arrowElement = data.instance.popper.querySelector(arrowElement);
+
+    // if arrowElement is not found, don't run the modifier
+    if (!arrowElement) {
+      return data;
+    }
+  } else {
+    // if the arrowElement isn't a query selector we must check that the
+    // provided DOM node is child of its popper node
+    if (!data.instance.popper.contains(arrowElement)) {
+      console.warn('WARNING: `arrow.element` must be child of its popper element!');
+      return data;
+    }
+  }
+
+  var placement = data.placement.split('-')[0];
+  var _data$offsets = data.offsets,
+      popper = _data$offsets.popper,
+      reference = _data$offsets.reference;
+
+  var isVertical = ['left', 'right'].indexOf(placement) !== -1;
+
+  var len = isVertical ? 'height' : 'width';
+  var sideCapitalized = isVertical ? 'Top' : 'Left';
+  var side = sideCapitalized.toLowerCase();
+  var altSide = isVertical ? 'left' : 'top';
+  var opSide = isVertical ? 'bottom' : 'right';
+  var arrowElementSize = getOuterSizes(arrowElement)[len];
+
+  //
+  // extends keepTogether behavior making sure the popper and its
+  // reference have enough pixels in conjuction
+  //
+
+  // top/left side
+  if (reference[opSide] - arrowElementSize < popper[side]) {
+    data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
+  }
+  // bottom/right side
+  if (reference[side] + arrowElementSize > popper[opSide]) {
+    data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
+  }
+  data.offsets.popper = getClientRect(data.offsets.popper);
+
+  // compute center of the popper
+  var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
+
+  // Compute the sideValue using the updated popper offsets
+  // take popper margin in account because we don't have this info available
+  var css = getStyleComputedProperty(data.instance.popper);
+  var popperMarginSide = parseFloat(css['margin' + sideCapitalized], 10);
+  var popperBorderSide = parseFloat(css['border' + sideCapitalized + 'Width'], 10);
+  var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;
+
+  // prevent arrowElement from being placed not contiguously to its popper
+  sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
+
+  data.arrowElement = arrowElement;
+  data.offsets.arrow = (_data$offsets$arrow = {}, defineProperty(_data$offsets$arrow, side, Math.round(sideValue)), defineProperty(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);
+
+  return data;
+}
+
+/**
+ * Get the opposite placement variation of the given one
+ * @method
+ * @memberof Popper.Utils
+ * @argument {String} placement variation
+ * @returns {String} flipped placement variation
+ */
+function getOppositeVariation(variation) {
+  if (variation === 'end') {
+    return 'start';
+  } else if (variation === 'start') {
+    return 'end';
+  }
+  return variation;
+}
+
+/**
+ * List of accepted placements to use as values of the `placement` option.<br />
+ * Valid placements are:
+ * - `auto`
+ * - `top`
+ * - `right`
+ * - `bottom`
+ * - `left`
+ *
+ * Each placement can have a variation from this list:
+ * - `-start`
+ * - `-end`
+ *
+ * Variations are interpreted easily if you think of them as the left to right
+ * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
+ * is right.<br />
+ * Vertically (`left` and `right`), `start` is top and `end` is bottom.
+ *
+ * Some valid examples are:
+ * - `top-end` (on top of reference, right aligned)
+ * - `right-start` (on right of reference, top aligned)
+ * - `bottom` (on bottom, centered)
+ * - `auto-right` (on the side with more space available, alignment depends by placement)
+ *
+ * @static
+ * @type {Array}
+ * @enum {String}
+ * @readonly
+ * @method placements
+ * @memberof Popper
+ */
+var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];
+
+// Get rid of `auto` `auto-start` and `auto-end`
+var validPlacements = placements.slice(3);
+
+/**
+ * Given an initial placement, returns all the subsequent placements
+ * clockwise (or counter-clockwise).
+ *
+ * @method
+ * @memberof Popper.Utils
+ * @argument {String} placement - A valid placement (it accepts variations)
+ * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
+ * @returns {Array} placements including their variations
+ */
+function clockwise(placement) {
+  var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+  var index = validPlacements.indexOf(placement);
+  var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
+  return counter ? arr.reverse() : arr;
+}
+
+var BEHAVIORS = {
+  FLIP: 'flip',
+  CLOCKWISE: 'clockwise',
+  COUNTERCLOCKWISE: 'counterclockwise'
+};
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by update method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function flip(data, options) {
+  // if `inner` modifier is enabled, we can't use the `flip` modifier
+  if (isModifierEnabled(data.instance.modifiers, 'inner')) {
+    return data;
+  }
+
+  if (data.flipped && data.placement === data.originalPlacement) {
+    // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
+    return data;
+  }
+
+  var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement);
+
+  var placement = data.placement.split('-')[0];
+  var placementOpposite = getOppositePlacement(placement);
+  var variation = data.placement.split('-')[1] || '';
+
+  var flipOrder = [];
+
+  switch (options.behavior) {
+    case BEHAVIORS.FLIP:
+      flipOrder = [placement, placementOpposite];
+      break;
+    case BEHAVIORS.CLOCKWISE:
+      flipOrder = clockwise(placement);
+      break;
+    case BEHAVIORS.COUNTERCLOCKWISE:
+      flipOrder = clockwise(placement, true);
+      break;
+    default:
+      flipOrder = options.behavior;
+  }
+
+  flipOrder.forEach(function (step, index) {
+    if (placement !== step || flipOrder.length === index + 1) {
+      return data;
+    }
+
+    placement = data.placement.split('-')[0];
+    placementOpposite = getOppositePlacement(placement);
+
+    var popperOffsets = data.offsets.popper;
+    var refOffsets = data.offsets.reference;
+
+    // using floor because the reference offsets may contain decimals we are not going to consider here
+    var floor = Math.floor;
+    var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);
+
+    var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
+    var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
+    var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
+    var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);
+
+    var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;
+
+    // flip the variation if required
+    var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
+    var flippedVariation = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);
+
+    if (overlapsRef || overflowsBoundaries || flippedVariation) {
+      // this boolean to detect any flip loop
+      data.flipped = true;
+
+      if (overlapsRef || overflowsBoundaries) {
+        placement = flipOrder[index + 1];
+      }
+
+      if (flippedVariation) {
+        variation = getOppositeVariation(variation);
+      }
+
+      data.placement = placement + (variation ? '-' + variation : '');
+
+      // this object contains `position`, we want to preserve it along with
+      // any additional property we may add in the future
+      data.offsets.popper = _extends$1({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));
+
+      data = runModifiers(data.instance.modifiers, data, 'flip');
+    }
+  });
+  return data;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by update method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function keepTogether(data) {
+  var _data$offsets = data.offsets,
+      popper = _data$offsets.popper,
+      reference = _data$offsets.reference;
+
+  var placement = data.placement.split('-')[0];
+  var floor = Math.floor;
+  var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
+  var side = isVertical ? 'right' : 'bottom';
+  var opSide = isVertical ? 'left' : 'top';
+  var measurement = isVertical ? 'width' : 'height';
+
+  if (popper[side] < floor(reference[opSide])) {
+    data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
+  }
+  if (popper[opSide] > floor(reference[side])) {
+    data.offsets.popper[opSide] = floor(reference[side]);
+  }
+
+  return data;
+}
+
+/**
+ * Converts a string containing value + unit into a px value number
+ * @function
+ * @memberof {modifiers~offset}
+ * @private
+ * @argument {String} str - Value + unit string
+ * @argument {String} measurement - `height` or `width`
+ * @argument {Object} popperOffsets
+ * @argument {Object} referenceOffsets
+ * @returns {Number|String}
+ * Value in pixels, or original string if no values were extracted
+ */
+function toValue(str, measurement, popperOffsets, referenceOffsets) {
+  // separate value from unit
+  var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
+  var value = +split[1];
+  var unit = split[2];
+
+  // If it's not a number it's an operator, I guess
+  if (!value) {
+    return str;
+  }
+
+  if (unit.indexOf('%') === 0) {
+    var element = void 0;
+    switch (unit) {
+      case '%p':
+        element = popperOffsets;
+        break;
+      case '%':
+      case '%r':
+      default:
+        element = referenceOffsets;
+    }
+
+    var rect = getClientRect(element);
+    return rect[measurement] / 100 * value;
+  } else if (unit === 'vh' || unit === 'vw') {
+    // if is a vh or vw, we calculate the size based on the viewport
+    var size = void 0;
+    if (unit === 'vh') {
+      size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
+    } else {
+      size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
+    }
+    return size / 100 * value;
+  } else {
+    // if is an explicit pixel unit, we get rid of the unit and keep the value
+    // if is an implicit unit, it's px, and we return just the value
+    return value;
+  }
+}
+
+/**
+ * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
+ * @function
+ * @memberof {modifiers~offset}
+ * @private
+ * @argument {String} offset
+ * @argument {Object} popperOffsets
+ * @argument {Object} referenceOffsets
+ * @argument {String} basePlacement
+ * @returns {Array} a two cells array with x and y offsets in numbers
+ */
+function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
+  var offsets = [0, 0];
+
+  // Use height if placement is left or right and index is 0 otherwise use width
+  // in this way the first offset will use an axis and the second one
+  // will use the other one
+  var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;
+
+  // Split the offset string to obtain a list of values and operands
+  // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
+  var fragments = offset.split(/(\+|\-)/).map(function (frag) {
+    return frag.trim();
+  });
+
+  // Detect if the offset string contains a pair of values or a single one
+  // they could be separated by comma or space
+  var divider = fragments.indexOf(find(fragments, function (frag) {
+    return frag.search(/,|\s/) !== -1;
+  }));
+
+  if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
+    console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
+  }
+
+  // If divider is found, we divide the list of values and operands to divide
+  // them by ofset X and Y.
+  var splitRegex = /\s*,\s*|\s+/;
+  var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];
+
+  // Convert the values with units to absolute pixels to allow our computations
+  ops = ops.map(function (op, index) {
+    // Most of the units rely on the orientation of the popper
+    var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
+    var mergeWithPrevious = false;
+    return op
+    // This aggregates any `+` or `-` sign that aren't considered operators
+    // e.g.: 10 + +5 => [10, +, +5]
+    .reduce(function (a, b) {
+      if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
+        a[a.length - 1] = b;
+        mergeWithPrevious = true;
+        return a;
+      } else if (mergeWithPrevious) {
+        a[a.length - 1] += b;
+        mergeWithPrevious = false;
+        return a;
+      } else {
+        return a.concat(b);
+      }
+    }, [])
+    // Here we convert the string values into number values (in px)
+    .map(function (str) {
+      return toValue(str, measurement, popperOffsets, referenceOffsets);
+    });
+  });
+
+  // Loop trough the offsets arrays and execute the operations
+  ops.forEach(function (op, index) {
+    op.forEach(function (frag, index2) {
+      if (isNumeric(frag)) {
+        offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
+      }
+    });
+  });
+  return offsets;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by update method
+ * @argument {Object} options - Modifiers configuration and options
+ * @argument {Number|String} options.offset=0
+ * The offset value as described in the modifier description
+ * @returns {Object} The data object, properly modified
+ */
+function offset(data, _ref) {
+  var offset = _ref.offset;
+  var placement = data.placement,
+      _data$offsets = data.offsets,
+      popper = _data$offsets.popper,
+      reference = _data$offsets.reference;
+
+  var basePlacement = placement.split('-')[0];
+
+  var offsets = void 0;
+  if (isNumeric(+offset)) {
+    offsets = [+offset, 0];
+  } else {
+    offsets = parseOffset(offset, popper, reference, basePlacement);
+  }
+
+  if (basePlacement === 'left') {
+    popper.top += offsets[0];
+    popper.left -= offsets[1];
+  } else if (basePlacement === 'right') {
+    popper.top += offsets[0];
+    popper.left += offsets[1];
+  } else if (basePlacement === 'top') {
+    popper.left += offsets[0];
+    popper.top -= offsets[1];
+  } else if (basePlacement === 'bottom') {
+    popper.left += offsets[0];
+    popper.top += offsets[1];
+  }
+
+  data.popper = popper;
+  return data;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by `update` method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function preventOverflow(data, options) {
+  var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);
+
+  // If offsetParent is the reference element, we really want to
+  // go one step up and use the next offsetParent as reference to
+  // avoid to make this modifier completely useless and look like broken
+  if (data.instance.reference === boundariesElement) {
+    boundariesElement = getOffsetParent(boundariesElement);
+  }
+
+  var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement);
+  options.boundaries = boundaries;
+
+  var order = options.priority;
+  var popper = data.offsets.popper;
+
+  var check = {
+    primary: function primary(placement) {
+      var value = popper[placement];
+      if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
+        value = Math.max(popper[placement], boundaries[placement]);
+      }
+      return defineProperty({}, placement, value);
+    },
+    secondary: function secondary(placement) {
+      var mainSide = placement === 'right' ? 'left' : 'top';
+      var value = popper[mainSide];
+      if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
+        value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
+      }
+      return defineProperty({}, mainSide, value);
+    }
+  };
+
+  order.forEach(function (placement) {
+    var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
+    popper = _extends$1({}, popper, check[side](placement));
+  });
+
+  data.offsets.popper = popper;
+
+  return data;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by `update` method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function shift(data) {
+  var placement = data.placement;
+  var basePlacement = placement.split('-')[0];
+  var shiftvariation = placement.split('-')[1];
+
+  // if shift shiftvariation is specified, run the modifier
+  if (shiftvariation) {
+    var _data$offsets = data.offsets,
+        reference = _data$offsets.reference,
+        popper = _data$offsets.popper;
+
+    var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
+    var side = isVertical ? 'left' : 'top';
+    var measurement = isVertical ? 'width' : 'height';
+
+    var shiftOffsets = {
+      start: defineProperty({}, side, reference[side]),
+      end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
+    };
+
+    data.offsets.popper = _extends$1({}, popper, shiftOffsets[shiftvariation]);
+  }
+
+  return data;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by update method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function hide(data) {
+  if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
+    return data;
+  }
+
+  var refRect = data.offsets.reference;
+  var bound = find(data.instance.modifiers, function (modifier) {
+    return modifier.name === 'preventOverflow';
+  }).boundaries;
+
+  if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
+    // Avoid unnecessary DOM access if visibility hasn't changed
+    if (data.hide === true) {
+      return data;
+    }
+
+    data.hide = true;
+    data.attributes['x-out-of-boundaries'] = '';
+  } else {
+    // Avoid unnecessary DOM access if visibility hasn't changed
+    if (data.hide === false) {
+      return data;
+    }
+
+    data.hide = false;
+    data.attributes['x-out-of-boundaries'] = false;
+  }
+
+  return data;
+}
+
+/**
+ * @function
+ * @memberof Modifiers
+ * @argument {Object} data - The data object generated by `update` method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {Object} The data object, properly modified
+ */
+function inner(data) {
+  var placement = data.placement;
+  var basePlacement = placement.split('-')[0];
+  var _data$offsets = data.offsets,
+      popper = _data$offsets.popper,
+      reference = _data$offsets.reference;
+
+  var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;
+
+  var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;
+
+  popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
+
+  data.placement = getOppositePlacement(placement);
+  data.offsets.popper = getClientRect(popper);
+
+  return data;
+}
+
+/**
+ * Modifier function, each modifier can have a function of this type assigned
+ * to its `fn` property.<br />
+ * These functions will be called on each update, this means that you must
+ * make sure they are performant enough to avoid performance bottlenecks.
+ *
+ * @function ModifierFn
+ * @argument {dataObject} data - The data object generated by `update` method
+ * @argument {Object} options - Modifiers configuration and options
+ * @returns {dataObject} The data object, properly modified
+ */
+
+/**
+ * Modifiers are plugins used to alter the behavior of your poppers.<br />
+ * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
+ * needed by the library.
+ *
+ * Usually you don't want to override the `order`, `fn` and `onLoad` props.
+ * All the other properties are configurations that could be tweaked.
+ * @namespace modifiers
+ */
+var modifiers = {
+  /**
+   * Modifier used to shift the popper on the start or end of its reference
+   * element.<br />
+   * It will read the variation of the `placement` property.<br />
+   * It can be one either `-end` or `-start`.
+   * @memberof modifiers
+   * @inner
+   */
+  shift: {
+    /** @prop {number} order=100 - Index used to define the order of execution */
+    order: 100,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: shift
+  },
+
+  /**
+   * The `offset` modifier can shift your popper on both its axis.
+   *
+   * It accepts the following units:
+   * - `px` or unitless, interpreted as pixels
+   * - `%` or `%r`, percentage relative to the length of the reference element
+   * - `%p`, percentage relative to the length of the popper element
+   * - `vw`, CSS viewport width unit
+   * - `vh`, CSS viewport height unit
+   *
+   * For length is intended the main axis relative to the placement of the popper.<br />
+   * This means that if the placement is `top` or `bottom`, the length will be the
+   * `width`. In case of `left` or `right`, it will be the height.
+   *
+   * You can provide a single value (as `Number` or `String`), or a pair of values
+   * as `String` divided by a comma or one (or more) white spaces.<br />
+   * The latter is a deprecated method because it leads to confusion and will be
+   * removed in v2.<br />
+   * Additionally, it accepts additions and subtractions between different units.
+   * Note that multiplications and divisions aren't supported.
+   *
+   * Valid examples are:
+   * ```
+   * 10
+   * '10%'
+   * '10, 10'
+   * '10%, 10'
+   * '10 + 10%'
+   * '10 - 5vh + 3%'
+   * '-10px + 5vh, 5px - 6%'
+   * ```
+   * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
+   * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
+   * > More on this [reading this issue](https://github.com/FezVrasta/popper.js/issues/373)
+   *
+   * @memberof modifiers
+   * @inner
+   */
+  offset: {
+    /** @prop {number} order=200 - Index used to define the order of execution */
+    order: 200,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: offset,
+    /** @prop {Number|String} offset=0
+     * The offset value as described in the modifier description
+     */
+    offset: 0
+  },
+
+  /**
+   * Modifier used to prevent the popper from being positioned outside the boundary.
+   *
+   * An scenario exists where the reference itself is not within the boundaries.<br />
+   * We can say it has "escaped the boundaries" — or just "escaped".<br />
+   * In this case we need to decide whether the popper should either:
+   *
+   * - detach from the reference and remain "trapped" in the boundaries, or
+   * - if it should ignore the boundary and "escape with its reference"
+   *
+   * When `escapeWithReference` is set to`true` and reference is completely
+   * outside its boundaries, the popper will overflow (or completely leave)
+   * the boundaries in order to remain attached to the edge of the reference.
+   *
+   * @memberof modifiers
+   * @inner
+   */
+  preventOverflow: {
+    /** @prop {number} order=300 - Index used to define the order of execution */
+    order: 300,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: preventOverflow,
+    /**
+     * @prop {Array} [priority=['left','right','top','bottom']]
+     * Popper will try to prevent overflow following these priorities by default,
+     * then, it could overflow on the left and on top of the `boundariesElement`
+     */
+    priority: ['left', 'right', 'top', 'bottom'],
+    /**
+     * @prop {number} padding=5
+     * Amount of pixel used to define a minimum distance between the boundaries
+     * and the popper this makes sure the popper has always a little padding
+     * between the edges of its container
+     */
+    padding: 5,
+    /**
+     * @prop {String|HTMLElement} boundariesElement='scrollParent'
+     * Boundaries used by the modifier, can be `scrollParent`, `window`,
+     * `viewport` or any DOM element.
+     */
+    boundariesElement: 'scrollParent'
+  },
+
+  /**
+   * Modifier used to make sure the reference and its popper stay near eachothers
+   * without leaving any gap between the two. Expecially useful when the arrow is
+   * enabled and you want to assure it to point to its reference element.
+   * It cares only about the first axis, you can still have poppers with margin
+   * between the popper and its reference element.
+   * @memberof modifiers
+   * @inner
+   */
+  keepTogether: {
+    /** @prop {number} order=400 - Index used to define the order of execution */
+    order: 400,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: keepTogether
+  },
+
+  /**
+   * This modifier is used to move the `arrowElement` of the popper to make
+   * sure it is positioned between the reference element and its popper element.
+   * It will read the outer size of the `arrowElement` node to detect how many
+   * pixels of conjuction are needed.
+   *
+   * It has no effect if no `arrowElement` is provided.
+   * @memberof modifiers
+   * @inner
+   */
+  arrow: {
+    /** @prop {number} order=500 - Index used to define the order of execution */
+    order: 500,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: arrow,
+    /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
+    element: '[x-arrow]'
+  },
+
+  /**
+   * Modifier used to flip the popper's placement when it starts to overlap its
+   * reference element.
+   *
+   * Requires the `preventOverflow` modifier before it in order to work.
+   *
+   * **NOTE:** this modifier will interrupt the current update cycle and will
+   * restart it if it detects the need to flip the placement.
+   * @memberof modifiers
+   * @inner
+   */
+  flip: {
+    /** @prop {number} order=600 - Index used to define the order of execution */
+    order: 600,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: flip,
+    /**
+     * @prop {String|Array} behavior='flip'
+     * The behavior used to change the popper's placement. It can be one of
+     * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
+     * placements (with optional variations).
+     */
+    behavior: 'flip',
+    /**
+     * @prop {number} padding=5
+     * The popper will flip if it hits the edges of the `boundariesElement`
+     */
+    padding: 5,
+    /**
+     * @prop {String|HTMLElement} boundariesElement='viewport'
+     * The element which will define the boundaries of the popper position,
+     * the popper will never be placed outside of the defined boundaries
+     * (except if keepTogether is enabled)
+     */
+    boundariesElement: 'viewport'
+  },
+
+  /**
+   * Modifier used to make the popper flow toward the inner of the reference element.
+   * By default, when this modifier is disabled, the popper will be placed outside
+   * the reference element.
+   * @memberof modifiers
+   * @inner
+   */
+  inner: {
+    /** @prop {number} order=700 - Index used to define the order of execution */
+    order: 700,
+    /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
+    enabled: false,
+    /** @prop {ModifierFn} */
+    fn: inner
+  },
+
+  /**
+   * Modifier used to hide the popper when its reference element is outside of the
+   * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
+   * be used to hide with a CSS selector the popper when its reference is
+   * out of boundaries.
+   *
+   * Requires the `preventOverflow` modifier before it in order to work.
+   * @memberof modifiers
+   * @inner
+   */
+  hide: {
+    /** @prop {number} order=800 - Index used to define the order of execution */
+    order: 800,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: hide
+  },
+
+  /**
+   * Computes the style that will be applied to the popper element to gets
+   * properly positioned.
+   *
+   * Note that this modifier will not touch the DOM, it just prepares the styles
+   * so that `applyStyle` modifier can apply it. This separation is useful
+   * in case you need to replace `applyStyle` with a custom implementation.
+   *
+   * This modifier has `850` as `order` value to maintain backward compatibility
+   * with previous versions of Popper.js. Expect the modifiers ordering method
+   * to change in future major versions of the library.
+   *
+   * @memberof modifiers
+   * @inner
+   */
+  computeStyle: {
+    /** @prop {number} order=850 - Index used to define the order of execution */
+    order: 850,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: computeStyle,
+    /**
+     * @prop {Boolean} gpuAcceleration=true
+     * If true, it uses the CSS 3d transformation to position the popper.
+     * Otherwise, it will use the `top` and `left` properties.
+     */
+    gpuAcceleration: true,
+    /**
+     * @prop {string} [x='bottom']
+     * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
+     * Change this if your popper should grow in a direction different from `bottom`
+     */
+    x: 'bottom',
+    /**
+     * @prop {string} [x='left']
+     * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
+     * Change this if your popper should grow in a direction different from `right`
+     */
+    y: 'right'
+  },
+
+  /**
+   * Applies the computed styles to the popper element.
+   *
+   * All the DOM manipulations are limited to this modifier. This is useful in case
+   * you want to integrate Popper.js inside a framework or view library and you
+   * want to delegate all the DOM manipulations to it.
+   *
+   * Note that if you disable this modifier, you must make sure the popper element
+   * has its position set to `absolute` before Popper.js can do its work!
+   *
+   * Just disable this modifier and define you own to achieve the desired effect.
+   *
+   * @memberof modifiers
+   * @inner
+   */
+  applyStyle: {
+    /** @prop {number} order=900 - Index used to define the order of execution */
+    order: 900,
+    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
+    enabled: true,
+    /** @prop {ModifierFn} */
+    fn: applyStyle,
+    /** @prop {Function} */
+    onLoad: applyStyleOnLoad,
+    /**
+     * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
+     * @prop {Boolean} gpuAcceleration=true
+     * If true, it uses the CSS 3d transformation to position the popper.
+     * Otherwise, it will use the `top` and `left` properties.
+     */
+    gpuAcceleration: undefined
+  }
+};
+
+/**
+ * The `dataObject` is an object containing all the informations used by Popper.js
+ * this object get passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
+ * @name dataObject
+ * @property {Object} data.instance The Popper.js instance
+ * @property {String} data.placement Placement applied to popper
+ * @property {String} data.originalPlacement Placement originally defined on init
+ * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
+ * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper.
+ * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
+ * @property {Object} data.styles Any CSS property defined here will be applied to the popper, it expects the JavaScript nomenclature (eg. `marginBottom`)
+ * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow, it expects the JavaScript nomenclature (eg. `marginBottom`)
+ * @property {Object} data.boundaries Offsets of the popper boundaries
+ * @property {Object} data.offsets The measurements of popper, reference and arrow elements.
+ * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
+ * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
+ * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
+ */
+
+/**
+ * Default options provided to Popper.js constructor.<br />
+ * These can be overriden using the `options` argument of Popper.js.<br />
+ * To override an option, simply pass as 3rd argument an object with the same
+ * structure of this object, example:
+ * ```
+ * new Popper(ref, pop, {
+ *   modifiers: {
+ *     preventOverflow: { enabled: false }
+ *   }
+ * })
+ * ```
+ * @type {Object}
+ * @static
+ * @memberof Popper
+ */
+var Defaults = {
+  /**
+   * Popper's placement
+   * @prop {Popper.placements} placement='bottom'
+   */
+  placement: 'bottom',
+
+  /**
+   * Whether events (resize, scroll) are initially enabled
+   * @prop {Boolean} eventsEnabled=true
+   */
+  eventsEnabled: true,
+
+  /**
+   * Set to true if you want to automatically remove the popper when
+   * you call the `destroy` method.
+   * @prop {Boolean} removeOnDestroy=false
+   */
+  removeOnDestroy: false,
+
+  /**
+   * Callback called when the popper is created.<br />
+   * By default, is set to no-op.<br />
+   * Access Popper.js instance with `data.instance`.
+   * @prop {onCreate}
+   */
+  onCreate: function onCreate() {},
+
+  /**
+   * Callback called when the popper is updated, this callback is not called
+   * on the initialization/creation of the popper, but only on subsequent
+   * updates.<br />
+   * By default, is set to no-op.<br />
+   * Access Popper.js instance with `data.instance`.
+   * @prop {onUpdate}
+   */
+  onUpdate: function onUpdate() {},
+
+  /**
+   * List of modifiers used to modify the offsets before they are applied to the popper.
+   * They provide most of the functionalities of Popper.js
+   * @prop {modifiers}
+   */
+  modifiers: modifiers
+};
+
+/**
+ * @callback onCreate
+ * @param {dataObject} data
+ */
+
+/**
+ * @callback onUpdate
+ * @param {dataObject} data
+ */
+
+// Utils
+// Methods
+var Popper = function () {
+  /**
+   * Create a new Popper.js instance
+   * @class Popper
+   * @param {HTMLElement|referenceObject} reference - The reference element used to position the popper
+   * @param {HTMLElement} popper - The HTML element used as popper.
+   * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
+   * @return {Object} instance - The generated Popper.js instance
+   */
+  function Popper(reference, popper) {
+    var _this = this;
+
+    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+    classCallCheck(this, Popper);
+
+    this.scheduleUpdate = function () {
+      return requestAnimationFrame(_this.update);
+    };
+
+    // make update() debounced, so that it only runs at most once-per-tick
+    this.update = debounce(this.update.bind(this));
+
+    // with {} we create a new object with the options inside it
+    this.options = _extends$1({}, Popper.Defaults, options);
+
+    // init state
+    this.state = {
+      isDestroyed: false,
+      isCreated: false,
+      scrollParents: []
+    };
+
+    // get reference and popper elements (allow jQuery wrappers)
+    this.reference = reference && reference.jquery ? reference[0] : reference;
+    this.popper = popper && popper.jquery ? popper[0] : popper;
+
+    // Deep merge modifiers options
+    this.options.modifiers = {};
+    Object.keys(_extends$1({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
+      _this.options.modifiers[name] = _extends$1({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
+    });
+
+    // Refactoring modifiers' list (Object => Array)
+    this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
+      return _extends$1({
+        name: name
+      }, _this.options.modifiers[name]);
+    })
+    // sort the modifiers by order
+    .sort(function (a, b) {
+      return a.order - b.order;
+    });
+
+    // modifiers have the ability to execute arbitrary code when Popper.js get inited
+    // such code is executed in the same order of its modifier
+    // they could add new properties to their options configuration
+    // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
+    this.modifiers.forEach(function (modifierOptions) {
+      if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
+        modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
+      }
+    });
+
+    // fire the first update to position the popper in the right place
+    this.update();
+
+    var eventsEnabled = this.options.eventsEnabled;
+    if (eventsEnabled) {
+      // setup event listeners, they will take care of update the position in specific situations
+      this.enableEventListeners();
+    }
+
+    this.state.eventsEnabled = eventsEnabled;
+  }
+
+  // We can't use class properties because they don't get listed in the
+  // class prototype and break stuff like Sinon stubs
+
+
+  createClass(Popper, [{
+    key: 'update',
+    value: function update$$1() {
+      return update.call(this);
+    }
+  }, {
+    key: 'destroy',
+    value: function destroy$$1() {
+      return destroy.call(this);
+    }
+  }, {
+    key: 'enableEventListeners',
+    value: function enableEventListeners$$1() {
+      return enableEventListeners.call(this);
+    }
+  }, {
+    key: 'disableEventListeners',
+    value: function disableEventListeners$$1() {
+      return disableEventListeners.call(this);
+    }
+
+    /**
+     * Schedule an update, it will run on the next UI update available
+     * @method scheduleUpdate
+     * @memberof Popper
+     */
+
+
+    /**
+     * Collection of utilities useful when writing custom modifiers.
+     * Starting from version 1.7, this method is available only if you
+     * include `popper-utils.js` before `popper.js`.
+     *
+     * **DEPRECATION**: This way to access PopperUtils is deprecated
+     * and will be removed in v2! Use the PopperUtils module directly instead.
+     * Due to the high instability of the methods contained in Utils, we can't
+     * guarantee them to follow semver. Use them at your own risk!
+     * @static
+     * @private
+     * @type {Object}
+     * @deprecated since version 1.8
+     * @member Utils
+     * @memberof Popper
+     */
+
+  }]);
+  return Popper;
+}();
+
+/**
+ * The `referenceObject` is an object that provides an interface compatible with Popper.js
+ * and lets you use it as replacement of a real DOM node.<br />
+ * You can use this method to position a popper relatively to a set of coordinates
+ * in case you don't have a DOM node to use as reference.
+ *
+ * ```
+ * new Popper(referenceObject, popperNode);
+ * ```
+ *
+ * NB: This feature isn't supported in Internet Explorer 10
+ * @name referenceObject
+ * @property {Function} data.getBoundingClientRect
+ * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
+ * @property {number} data.clientWidth
+ * An ES6 getter that will return the width of the virtual reference element.
+ * @property {number} data.clientHeight
+ * An ES6 getter that will return the height of the virtual reference element.
+ */
+
+
+Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
+Popper.placements = placements;
+Popper.Defaults = Defaults;
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): dropdown.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Dropdown = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'dropdown';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.dropdown';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
+
+  var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key
+
+  var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key
+
+  var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key
+
+  var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key
+
+  var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
+
+  var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
+  var Event = {
+    HIDE: "hide" + EVENT_KEY,
+    HIDDEN: "hidden" + EVENT_KEY,
+    SHOW: "show" + EVENT_KEY,
+    SHOWN: "shown" + EVENT_KEY,
+    CLICK: "click" + EVENT_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
+    KEYDOWN_DATA_API: "keydown" + EVENT_KEY + DATA_API_KEY,
+    KEYUP_DATA_API: "keyup" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    DISABLED: 'disabled',
+    SHOW: 'show',
+    DROPUP: 'dropup',
+    DROPRIGHT: 'dropright',
+    DROPLEFT: 'dropleft',
+    MENURIGHT: 'dropdown-menu-right',
+    MENULEFT: 'dropdown-menu-left',
+    POSITION_STATIC: 'position-static'
+  };
+  var Selector = {
+    DATA_TOGGLE: '[data-toggle="dropdown"]',
+    FORM_CHILD: '.dropdown form',
+    MENU: '.dropdown-menu',
+    NAVBAR_NAV: '.navbar-nav',
+    VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled)'
+  };
+  var AttachmentMap = {
+    TOP: 'top-start',
+    TOPEND: 'top-end',
+    BOTTOM: 'bottom-start',
+    BOTTOMEND: 'bottom-end',
+    RIGHT: 'right-start',
+    RIGHTEND: 'right-end',
+    LEFT: 'left-start',
+    LEFTEND: 'left-end'
+  };
+  var Default = {
+    offset: 0,
+    flip: true,
+    boundary: 'scrollParent'
+  };
+  var DefaultType = {
+    offset: '(number|string|function)',
+    flip: 'boolean',
+    boundary: '(string|element)'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Dropdown =
+  /*#__PURE__*/
+  function () {
+    function Dropdown(element, config) {
+      this._element = element;
+      this._popper = null;
+      this._config = this._getConfig(config);
+      this._menu = this._getMenuElement();
+      this._inNavbar = this._detectNavbar();
+
+      this._addEventListeners();
+    } // getters
+
+
+    var _proto = Dropdown.prototype;
+
+    // public
+    _proto.toggle = function toggle() {
+      if (this._element.disabled || $$$1(this._element).hasClass(ClassName.DISABLED)) {
+        return;
+      }
+
+      var parent = Dropdown._getParentFromElement(this._element);
+
+      var isActive = $$$1(this._menu).hasClass(ClassName.SHOW);
+
+      Dropdown._clearMenus();
+
+      if (isActive) {
+        return;
+      }
+
+      var relatedTarget = {
+        relatedTarget: this._element
+      };
+      var showEvent = $$$1.Event(Event.SHOW, relatedTarget);
+      $$$1(parent).trigger(showEvent);
+
+      if (showEvent.isDefaultPrevented()) {
+        return;
+      } // Disable totally Popper.js for Dropdown in Navbar
+
+
+      if (!this._inNavbar) {
+        /**
+         * Check for Popper dependency
+         * Popper - https://popper.js.org
+         */
+        if (typeof Popper === 'undefined') {
+          throw new Error('Bootstrap dropdown require Popper.js (https://popper.js.org)');
+        }
+
+        var element = this._element; // for dropup with alignment we use the parent as popper container
+
+        if ($$$1(parent).hasClass(ClassName.DROPUP)) {
+          if ($$$1(this._menu).hasClass(ClassName.MENULEFT) || $$$1(this._menu).hasClass(ClassName.MENURIGHT)) {
+            element = parent;
+          }
+        } // If boundary is not `scrollParent`, then set position to `static`
+        // to allow the menu to "escape" the scroll parent's boundaries
+        // https://github.com/twbs/bootstrap/issues/24251
+
+
+        if (this._config.boundary !== 'scrollParent') {
+          $$$1(parent).addClass(ClassName.POSITION_STATIC);
+        }
+
+        this._popper = new Popper(element, this._menu, this._getPopperConfig());
+      } // if this is a touch-enabled device we add extra
+      // empty mouseover listeners to the body's immediate children;
+      // only needed because of broken event delegation on iOS
+      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
+
+
+      if ('ontouchstart' in document.documentElement && !$$$1(parent).closest(Selector.NAVBAR_NAV).length) {
+        $$$1('body').children().on('mouseover', null, $$$1.noop);
+      }
+
+      this._element.focus();
+
+      this._element.setAttribute('aria-expanded', true);
+
+      $$$1(this._menu).toggleClass(ClassName.SHOW);
+      $$$1(parent).toggleClass(ClassName.SHOW).trigger($$$1.Event(Event.SHOWN, relatedTarget));
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      $$$1(this._element).off(EVENT_KEY);
+      this._element = null;
+      this._menu = null;
+
+      if (this._popper !== null) {
+        this._popper.destroy();
+
+        this._popper = null;
+      }
+    };
+
+    _proto.update = function update() {
+      this._inNavbar = this._detectNavbar();
+
+      if (this._popper !== null) {
+        this._popper.scheduleUpdate();
+      }
+    }; // private
+
+
+    _proto._addEventListeners = function _addEventListeners() {
+      var _this = this;
+
+      $$$1(this._element).on(Event.CLICK, function (event) {
+        event.preventDefault();
+        event.stopPropagation();
+
+        _this.toggle();
+      });
+    };
+
+    _proto._getConfig = function _getConfig(config) {
+      config = _extends({}, this.constructor.Default, $$$1(this._element).data(), config);
+      Util.typeCheckConfig(NAME, config, this.constructor.DefaultType);
+      return config;
+    };
+
+    _proto._getMenuElement = function _getMenuElement() {
+      if (!this._menu) {
+        var parent = Dropdown._getParentFromElement(this._element);
+
+        this._menu = $$$1(parent).find(Selector.MENU)[0];
+      }
+
+      return this._menu;
+    };
+
+    _proto._getPlacement = function _getPlacement() {
+      var $parentDropdown = $$$1(this._element).parent();
+      var placement = AttachmentMap.BOTTOM; // Handle dropup
+
+      if ($parentDropdown.hasClass(ClassName.DROPUP)) {
+        placement = AttachmentMap.TOP;
+
+        if ($$$1(this._menu).hasClass(ClassName.MENURIGHT)) {
+          placement = AttachmentMap.TOPEND;
+        }
+      } else if ($parentDropdown.hasClass(ClassName.DROPRIGHT)) {
+        placement = AttachmentMap.RIGHT;
+      } else if ($parentDropdown.hasClass(ClassName.DROPLEFT)) {
+        placement = AttachmentMap.LEFT;
+      } else if ($$$1(this._menu).hasClass(ClassName.MENURIGHT)) {
+        placement = AttachmentMap.BOTTOMEND;
+      }
+
+      return placement;
+    };
+
+    _proto._detectNavbar = function _detectNavbar() {
+      return $$$1(this._element).closest('.navbar').length > 0;
+    };
+
+    _proto._getPopperConfig = function _getPopperConfig() {
+      var _this2 = this;
+
+      var offsetConf = {};
+
+      if (typeof this._config.offset === 'function') {
+        offsetConf.fn = function (data) {
+          data.offsets = _extends({}, data.offsets, _this2._config.offset(data.offsets) || {});
+          return data;
+        };
+      } else {
+        offsetConf.offset = this._config.offset;
+      }
+
+      var popperConfig = {
+        placement: this._getPlacement(),
+        modifiers: {
+          offset: offsetConf,
+          flip: {
+            enabled: this._config.flip
+          },
+          preventOverflow: {
+            boundariesElement: this._config.boundary
+          }
+        }
+      };
+      return popperConfig;
+    }; // static
+
+
+    Dropdown._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        var _config = typeof config === 'object' ? config : null;
+
+        if (!data) {
+          data = new Dropdown(this, _config);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config]();
+        }
+      });
+    };
+
+    Dropdown._clearMenus = function _clearMenus(event) {
+      if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
+        return;
+      }
+
+      var toggles = $$$1.makeArray($$$1(Selector.DATA_TOGGLE));
+
+      for (var i = 0; i < toggles.length; i++) {
+        var parent = Dropdown._getParentFromElement(toggles[i]);
+
+        var context = $$$1(toggles[i]).data(DATA_KEY);
+        var relatedTarget = {
+          relatedTarget: toggles[i]
+        };
+
+        if (!context) {
+          continue;
+        }
+
+        var dropdownMenu = context._menu;
+
+        if (!$$$1(parent).hasClass(ClassName.SHOW)) {
+          continue;
+        }
+
+        if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $$$1.contains(parent, event.target)) {
+          continue;
+        }
+
+        var hideEvent = $$$1.Event(Event.HIDE, relatedTarget);
+        $$$1(parent).trigger(hideEvent);
+
+        if (hideEvent.isDefaultPrevented()) {
+          continue;
+        } // if this is a touch-enabled device we remove the extra
+        // empty mouseover listeners we added for iOS support
+
+
+        if ('ontouchstart' in document.documentElement) {
+          $$$1('body').children().off('mouseover', null, $$$1.noop);
+        }
+
+        toggles[i].setAttribute('aria-expanded', 'false');
+        $$$1(dropdownMenu).removeClass(ClassName.SHOW);
+        $$$1(parent).removeClass(ClassName.SHOW).trigger($$$1.Event(Event.HIDDEN, relatedTarget));
+      }
+    };
+
+    Dropdown._getParentFromElement = function _getParentFromElement(element) {
+      var parent;
+      var selector = Util.getSelectorFromElement(element);
+
+      if (selector) {
+        parent = $$$1(selector)[0];
+      }
+
+      return parent || element.parentNode;
+    };
+
+    Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
+      // If not input/textarea:
+      //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
+      // If input/textarea:
+      //  - If space key => not a dropdown command
+      //  - If key is other than escape
+      //    - If key is not up or down => not a dropdown command
+      //    - If trigger inside the menu => not a dropdown command
+      if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || $$$1(event.target).closest(Selector.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
+        return;
+      }
+
+      event.preventDefault();
+      event.stopPropagation();
+
+      if (this.disabled || $$$1(this).hasClass(ClassName.DISABLED)) {
+        return;
+      }
+
+      var parent = Dropdown._getParentFromElement(this);
+
+      var isActive = $$$1(parent).hasClass(ClassName.SHOW);
+
+      if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
+        if (event.which === ESCAPE_KEYCODE) {
+          var toggle = $$$1(parent).find(Selector.DATA_TOGGLE)[0];
+          $$$1(toggle).trigger('focus');
+        }
+
+        $$$1(this).trigger('click');
+        return;
+      }
+
+      var items = $$$1(parent).find(Selector.VISIBLE_ITEMS).get();
+
+      if (!items.length) {
+        return;
+      }
+
+      var index = items.indexOf(event.target);
+
+      if (event.which === ARROW_UP_KEYCODE && index > 0) {
+        // up
+        index--;
+      }
+
+      if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
+        // down
+        index++;
+      }
+
+      if (index < 0) {
+        index = 0;
+      }
+
+      items[index].focus();
+    };
+
+    _createClass(Dropdown, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }, {
+      key: "DefaultType",
+      get: function get() {
+        return DefaultType;
+      }
+    }]);
+    return Dropdown;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + " " + Event.KEYUP_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+    event.preventDefault();
+    event.stopPropagation();
+
+    Dropdown._jQueryInterface.call($$$1(this), 'toggle');
+  }).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
+    e.stopPropagation();
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Dropdown._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Dropdown;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Dropdown._jQueryInterface;
+  };
+
+  return Dropdown;
+}($, Popper);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): modal.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Modal = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'modal';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.modal';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var TRANSITION_DURATION = 300;
+  var BACKDROP_TRANSITION_DURATION = 150;
+  var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
+
+  var Default = {
+    backdrop: true,
+    keyboard: true,
+    focus: true,
+    show: true
+  };
+  var DefaultType = {
+    backdrop: '(boolean|string)',
+    keyboard: 'boolean',
+    focus: 'boolean',
+    show: 'boolean'
+  };
+  var Event = {
+    HIDE: "hide" + EVENT_KEY,
+    HIDDEN: "hidden" + EVENT_KEY,
+    SHOW: "show" + EVENT_KEY,
+    SHOWN: "shown" + EVENT_KEY,
+    FOCUSIN: "focusin" + EVENT_KEY,
+    RESIZE: "resize" + EVENT_KEY,
+    CLICK_DISMISS: "click.dismiss" + EVENT_KEY,
+    KEYDOWN_DISMISS: "keydown.dismiss" + EVENT_KEY,
+    MOUSEUP_DISMISS: "mouseup.dismiss" + EVENT_KEY,
+    MOUSEDOWN_DISMISS: "mousedown.dismiss" + EVENT_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    SCROLLBAR_MEASURER: 'modal-scrollbar-measure',
+    BACKDROP: 'modal-backdrop',
+    OPEN: 'modal-open',
+    FADE: 'fade',
+    SHOW: 'show'
+  };
+  var Selector = {
+    DIALOG: '.modal-dialog',
+    DATA_TOGGLE: '[data-toggle="modal"]',
+    DATA_DISMISS: '[data-dismiss="modal"]',
+    FIXED_CONTENT: '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
+    STICKY_CONTENT: '.sticky-top',
+    NAVBAR_TOGGLER: '.navbar-toggler'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Modal =
+  /*#__PURE__*/
+  function () {
+    function Modal(element, config) {
+      this._config = this._getConfig(config);
+      this._element = element;
+      this._dialog = $$$1(element).find(Selector.DIALOG)[0];
+      this._backdrop = null;
+      this._isShown = false;
+      this._isBodyOverflowing = false;
+      this._ignoreBackdropClick = false;
+      this._originalBodyPadding = 0;
+      this._scrollbarWidth = 0;
+    } // getters
+
+
+    var _proto = Modal.prototype;
+
+    // public
+    _proto.toggle = function toggle(relatedTarget) {
+      return this._isShown ? this.hide() : this.show(relatedTarget);
+    };
+
+    _proto.show = function show(relatedTarget) {
+      var _this = this;
+
+      if (this._isTransitioning || this._isShown) {
+        return;
+      }
+
+      if (Util.supportsTransitionEnd() && $$$1(this._element).hasClass(ClassName.FADE)) {
+        this._isTransitioning = true;
+      }
+
+      var showEvent = $$$1.Event(Event.SHOW, {
+        relatedTarget: relatedTarget
+      });
+      $$$1(this._element).trigger(showEvent);
+
+      if (this._isShown || showEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      this._isShown = true;
+
+      this._checkScrollbar();
+
+      this._setScrollbar();
+
+      this._adjustDialog();
+
+      $$$1(document.body).addClass(ClassName.OPEN);
+
+      this._setEscapeEvent();
+
+      this._setResizeEvent();
+
+      $$$1(this._element).on(Event.CLICK_DISMISS, Selector.DATA_DISMISS, function (event) {
+        return _this.hide(event);
+      });
+      $$$1(this._dialog).on(Event.MOUSEDOWN_DISMISS, function () {
+        $$$1(_this._element).one(Event.MOUSEUP_DISMISS, function (event) {
+          if ($$$1(event.target).is(_this._element)) {
+            _this._ignoreBackdropClick = true;
+          }
+        });
+      });
+
+      this._showBackdrop(function () {
+        return _this._showElement(relatedTarget);
+      });
+    };
+
+    _proto.hide = function hide(event) {
+      var _this2 = this;
+
+      if (event) {
+        event.preventDefault();
+      }
+
+      if (this._isTransitioning || !this._isShown) {
+        return;
+      }
+
+      var hideEvent = $$$1.Event(Event.HIDE);
+      $$$1(this._element).trigger(hideEvent);
+
+      if (!this._isShown || hideEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      this._isShown = false;
+      var transition = Util.supportsTransitionEnd() && $$$1(this._element).hasClass(ClassName.FADE);
+
+      if (transition) {
+        this._isTransitioning = true;
+      }
+
+      this._setEscapeEvent();
+
+      this._setResizeEvent();
+
+      $$$1(document).off(Event.FOCUSIN);
+      $$$1(this._element).removeClass(ClassName.SHOW);
+      $$$1(this._element).off(Event.CLICK_DISMISS);
+      $$$1(this._dialog).off(Event.MOUSEDOWN_DISMISS);
+
+      if (transition) {
+        $$$1(this._element).one(Util.TRANSITION_END, function (event) {
+          return _this2._hideModal(event);
+        }).emulateTransitionEnd(TRANSITION_DURATION);
+      } else {
+        this._hideModal();
+      }
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      $$$1(window, document, this._element, this._backdrop).off(EVENT_KEY);
+      this._config = null;
+      this._element = null;
+      this._dialog = null;
+      this._backdrop = null;
+      this._isShown = null;
+      this._isBodyOverflowing = null;
+      this._ignoreBackdropClick = null;
+      this._scrollbarWidth = null;
+    };
+
+    _proto.handleUpdate = function handleUpdate() {
+      this._adjustDialog();
+    }; // private
+
+
+    _proto._getConfig = function _getConfig(config) {
+      config = _extends({}, Default, config);
+      Util.typeCheckConfig(NAME, config, DefaultType);
+      return config;
+    };
+
+    _proto._showElement = function _showElement(relatedTarget) {
+      var _this3 = this;
+
+      var transition = Util.supportsTransitionEnd() && $$$1(this._element).hasClass(ClassName.FADE);
+
+      if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
+        // don't move modals dom position
+        document.body.appendChild(this._element);
+      }
+
+      this._element.style.display = 'block';
+
+      this._element.removeAttribute('aria-hidden');
+
+      this._element.scrollTop = 0;
+
+      if (transition) {
+        Util.reflow(this._element);
+      }
+
+      $$$1(this._element).addClass(ClassName.SHOW);
+
+      if (this._config.focus) {
+        this._enforceFocus();
+      }
+
+      var shownEvent = $$$1.Event(Event.SHOWN, {
+        relatedTarget: relatedTarget
+      });
+
+      var transitionComplete = function transitionComplete() {
+        if (_this3._config.focus) {
+          _this3._element.focus();
+        }
+
+        _this3._isTransitioning = false;
+        $$$1(_this3._element).trigger(shownEvent);
+      };
+
+      if (transition) {
+        $$$1(this._dialog).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(TRANSITION_DURATION);
+      } else {
+        transitionComplete();
+      }
+    };
+
+    _proto._enforceFocus = function _enforceFocus() {
+      var _this4 = this;
+
+      $$$1(document).off(Event.FOCUSIN) // guard against infinite focus loop
+      .on(Event.FOCUSIN, function (event) {
+        if (document !== event.target && _this4._element !== event.target && !$$$1(_this4._element).has(event.target).length) {
+          _this4._element.focus();
+        }
+      });
+    };
+
+    _proto._setEscapeEvent = function _setEscapeEvent() {
+      var _this5 = this;
+
+      if (this._isShown && this._config.keyboard) {
+        $$$1(this._element).on(Event.KEYDOWN_DISMISS, function (event) {
+          if (event.which === ESCAPE_KEYCODE) {
+            event.preventDefault();
+
+            _this5.hide();
+          }
+        });
+      } else if (!this._isShown) {
+        $$$1(this._element).off(Event.KEYDOWN_DISMISS);
+      }
+    };
+
+    _proto._setResizeEvent = function _setResizeEvent() {
+      var _this6 = this;
+
+      if (this._isShown) {
+        $$$1(window).on(Event.RESIZE, function (event) {
+          return _this6.handleUpdate(event);
+        });
+      } else {
+        $$$1(window).off(Event.RESIZE);
+      }
+    };
+
+    _proto._hideModal = function _hideModal() {
+      var _this7 = this;
+
+      this._element.style.display = 'none';
+
+      this._element.setAttribute('aria-hidden', true);
+
+      this._isTransitioning = false;
+
+      this._showBackdrop(function () {
+        $$$1(document.body).removeClass(ClassName.OPEN);
+
+        _this7._resetAdjustments();
+
+        _this7._resetScrollbar();
+
+        $$$1(_this7._element).trigger(Event.HIDDEN);
+      });
+    };
+
+    _proto._removeBackdrop = function _removeBackdrop() {
+      if (this._backdrop) {
+        $$$1(this._backdrop).remove();
+        this._backdrop = null;
+      }
+    };
+
+    _proto._showBackdrop = function _showBackdrop(callback) {
+      var _this8 = this;
+
+      var animate = $$$1(this._element).hasClass(ClassName.FADE) ? ClassName.FADE : '';
+
+      if (this._isShown && this._config.backdrop) {
+        var doAnimate = Util.supportsTransitionEnd() && animate;
+        this._backdrop = document.createElement('div');
+        this._backdrop.className = ClassName.BACKDROP;
+
+        if (animate) {
+          $$$1(this._backdrop).addClass(animate);
+        }
+
+        $$$1(this._backdrop).appendTo(document.body);
+        $$$1(this._element).on(Event.CLICK_DISMISS, function (event) {
+          if (_this8._ignoreBackdropClick) {
+            _this8._ignoreBackdropClick = false;
+            return;
+          }
+
+          if (event.target !== event.currentTarget) {
+            return;
+          }
+
+          if (_this8._config.backdrop === 'static') {
+            _this8._element.focus();
+          } else {
+            _this8.hide();
+          }
+        });
+
+        if (doAnimate) {
+          Util.reflow(this._backdrop);
+        }
+
+        $$$1(this._backdrop).addClass(ClassName.SHOW);
+
+        if (!callback) {
+          return;
+        }
+
+        if (!doAnimate) {
+          callback();
+          return;
+        }
+
+        $$$1(this._backdrop).one(Util.TRANSITION_END, callback).emulateTransitionEnd(BACKDROP_TRANSITION_DURATION);
+      } else if (!this._isShown && this._backdrop) {
+        $$$1(this._backdrop).removeClass(ClassName.SHOW);
+
+        var callbackRemove = function callbackRemove() {
+          _this8._removeBackdrop();
+
+          if (callback) {
+            callback();
+          }
+        };
+
+        if (Util.supportsTransitionEnd() && $$$1(this._element).hasClass(ClassName.FADE)) {
+          $$$1(this._backdrop).one(Util.TRANSITION_END, callbackRemove).emulateTransitionEnd(BACKDROP_TRANSITION_DURATION);
+        } else {
+          callbackRemove();
+        }
+      } else if (callback) {
+        callback();
+      }
+    }; // ----------------------------------------------------------------------
+    // the following methods are used to handle overflowing modals
+    // todo (fat): these should probably be refactored out of modal.js
+    // ----------------------------------------------------------------------
+
+
+    _proto._adjustDialog = function _adjustDialog() {
+      var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;
+
+      if (!this._isBodyOverflowing && isModalOverflowing) {
+        this._element.style.paddingLeft = this._scrollbarWidth + "px";
+      }
+
+      if (this._isBodyOverflowing && !isModalOverflowing) {
+        this._element.style.paddingRight = this._scrollbarWidth + "px";
+      }
+    };
+
+    _proto._resetAdjustments = function _resetAdjustments() {
+      this._element.style.paddingLeft = '';
+      this._element.style.paddingRight = '';
+    };
+
+    _proto._checkScrollbar = function _checkScrollbar() {
+      var rect = document.body.getBoundingClientRect();
+      this._isBodyOverflowing = rect.left + rect.right < window.innerWidth;
+      this._scrollbarWidth = this._getScrollbarWidth();
+    };
+
+    _proto._setScrollbar = function _setScrollbar() {
+      var _this9 = this;
+
+      if (this._isBodyOverflowing) {
+        // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
+        //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
+        // Adjust fixed content padding
+        $$$1(Selector.FIXED_CONTENT).each(function (index, element) {
+          var actualPadding = $$$1(element)[0].style.paddingRight;
+          var calculatedPadding = $$$1(element).css('padding-right');
+          $$$1(element).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + _this9._scrollbarWidth + "px");
+        }); // Adjust sticky content margin
+
+        $$$1(Selector.STICKY_CONTENT).each(function (index, element) {
+          var actualMargin = $$$1(element)[0].style.marginRight;
+          var calculatedMargin = $$$1(element).css('margin-right');
+          $$$1(element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) - _this9._scrollbarWidth + "px");
+        }); // Adjust navbar-toggler margin
+
+        $$$1(Selector.NAVBAR_TOGGLER).each(function (index, element) {
+          var actualMargin = $$$1(element)[0].style.marginRight;
+          var calculatedMargin = $$$1(element).css('margin-right');
+          $$$1(element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) + _this9._scrollbarWidth + "px");
+        }); // Adjust body padding
+
+        var actualPadding = document.body.style.paddingRight;
+        var calculatedPadding = $$$1('body').css('padding-right');
+        $$$1('body').data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + this._scrollbarWidth + "px");
+      }
+    };
+
+    _proto._resetScrollbar = function _resetScrollbar() {
+      // Restore fixed content padding
+      $$$1(Selector.FIXED_CONTENT).each(function (index, element) {
+        var padding = $$$1(element).data('padding-right');
+
+        if (typeof padding !== 'undefined') {
+          $$$1(element).css('padding-right', padding).removeData('padding-right');
+        }
+      }); // Restore sticky content and navbar-toggler margin
+
+      $$$1(Selector.STICKY_CONTENT + ", " + Selector.NAVBAR_TOGGLER).each(function (index, element) {
+        var margin = $$$1(element).data('margin-right');
+
+        if (typeof margin !== 'undefined') {
+          $$$1(element).css('margin-right', margin).removeData('margin-right');
+        }
+      }); // Restore body padding
+
+      var padding = $$$1('body').data('padding-right');
+
+      if (typeof padding !== 'undefined') {
+        $$$1('body').css('padding-right', padding).removeData('padding-right');
+      }
+    };
+
+    _proto._getScrollbarWidth = function _getScrollbarWidth() {
+      // thx d.walsh
+      var scrollDiv = document.createElement('div');
+      scrollDiv.className = ClassName.SCROLLBAR_MEASURER;
+      document.body.appendChild(scrollDiv);
+      var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
+      document.body.removeChild(scrollDiv);
+      return scrollbarWidth;
+    }; // static
+
+
+    Modal._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        var _config = _extends({}, Modal.Default, $$$1(this).data(), typeof config === 'object' && config);
+
+        if (!data) {
+          data = new Modal(this, _config);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config](relatedTarget);
+        } else if (_config.show) {
+          data.show(relatedTarget);
+        }
+      });
+    };
+
+    _createClass(Modal, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }]);
+    return Modal;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+    var _this10 = this;
+
+    var target;
+    var selector = Util.getSelectorFromElement(this);
+
+    if (selector) {
+      target = $$$1(selector)[0];
+    }
+
+    var config = $$$1(target).data(DATA_KEY) ? 'toggle' : _extends({}, $$$1(target).data(), $$$1(this).data());
+
+    if (this.tagName === 'A' || this.tagName === 'AREA') {
+      event.preventDefault();
+    }
+
+    var $target = $$$1(target).one(Event.SHOW, function (showEvent) {
+      if (showEvent.isDefaultPrevented()) {
+        // only register focus restorer if modal will actually get shown
+        return;
+      }
+
+      $target.one(Event.HIDDEN, function () {
+        if ($$$1(_this10).is(':visible')) {
+          _this10.focus();
+        }
+      });
+    });
+
+    Modal._jQueryInterface.call($$$1(target), config, this);
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Modal._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Modal;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Modal._jQueryInterface;
+  };
+
+  return Modal;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): tooltip.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Tooltip = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'tooltip';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.tooltip';
+  var EVENT_KEY = "." + DATA_KEY;
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var TRANSITION_DURATION = 150;
+  var CLASS_PREFIX = 'bs-tooltip';
+  var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
+  var DefaultType = {
+    animation: 'boolean',
+    template: 'string',
+    title: '(string|element|function)',
+    trigger: 'string',
+    delay: '(number|object)',
+    html: 'boolean',
+    selector: '(string|boolean)',
+    placement: '(string|function)',
+    offset: '(number|string)',
+    container: '(string|element|boolean)',
+    fallbackPlacement: '(string|array)',
+    boundary: '(string|element)'
+  };
+  var AttachmentMap = {
+    AUTO: 'auto',
+    TOP: 'top',
+    RIGHT: 'right',
+    BOTTOM: 'bottom',
+    LEFT: 'left'
+  };
+  var Default = {
+    animation: true,
+    template: '<div class="tooltip" role="tooltip">' + '<div class="arrow"></div>' + '<div class="tooltip-inner"></div></div>',
+    trigger: 'hover focus',
+    title: '',
+    delay: 0,
+    html: false,
+    selector: false,
+    placement: 'top',
+    offset: 0,
+    container: false,
+    fallbackPlacement: 'flip',
+    boundary: 'scrollParent'
+  };
+  var HoverState = {
+    SHOW: 'show',
+    OUT: 'out'
+  };
+  var Event = {
+    HIDE: "hide" + EVENT_KEY,
+    HIDDEN: "hidden" + EVENT_KEY,
+    SHOW: "show" + EVENT_KEY,
+    SHOWN: "shown" + EVENT_KEY,
+    INSERTED: "inserted" + EVENT_KEY,
+    CLICK: "click" + EVENT_KEY,
+    FOCUSIN: "focusin" + EVENT_KEY,
+    FOCUSOUT: "focusout" + EVENT_KEY,
+    MOUSEENTER: "mouseenter" + EVENT_KEY,
+    MOUSELEAVE: "mouseleave" + EVENT_KEY
+  };
+  var ClassName = {
+    FADE: 'fade',
+    SHOW: 'show'
+  };
+  var Selector = {
+    TOOLTIP: '.tooltip',
+    TOOLTIP_INNER: '.tooltip-inner',
+    ARROW: '.arrow'
+  };
+  var Trigger = {
+    HOVER: 'hover',
+    FOCUS: 'focus',
+    CLICK: 'click',
+    MANUAL: 'manual'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Tooltip =
+  /*#__PURE__*/
+  function () {
+    function Tooltip(element, config) {
+      /**
+       * Check for Popper dependency
+       * Popper - https://popper.js.org
+       */
+      if (typeof Popper === 'undefined') {
+        throw new Error('Bootstrap tooltips require Popper.js (https://popper.js.org)');
+      } // private
+
+
+      this._isEnabled = true;
+      this._timeout = 0;
+      this._hoverState = '';
+      this._activeTrigger = {};
+      this._popper = null; // protected
+
+      this.element = element;
+      this.config = this._getConfig(config);
+      this.tip = null;
+
+      this._setListeners();
+    } // getters
+
+
+    var _proto = Tooltip.prototype;
+
+    // public
+    _proto.enable = function enable() {
+      this._isEnabled = true;
+    };
+
+    _proto.disable = function disable() {
+      this._isEnabled = false;
+    };
+
+    _proto.toggleEnabled = function toggleEnabled() {
+      this._isEnabled = !this._isEnabled;
+    };
+
+    _proto.toggle = function toggle(event) {
+      if (!this._isEnabled) {
+        return;
+      }
+
+      if (event) {
+        var dataKey = this.constructor.DATA_KEY;
+        var context = $$$1(event.currentTarget).data(dataKey);
+
+        if (!context) {
+          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
+          $$$1(event.currentTarget).data(dataKey, context);
+        }
+
+        context._activeTrigger.click = !context._activeTrigger.click;
+
+        if (context._isWithActiveTrigger()) {
+          context._enter(null, context);
+        } else {
+          context._leave(null, context);
+        }
+      } else {
+        if ($$$1(this.getTipElement()).hasClass(ClassName.SHOW)) {
+          this._leave(null, this);
+
+          return;
+        }
+
+        this._enter(null, this);
+      }
+    };
+
+    _proto.dispose = function dispose() {
+      clearTimeout(this._timeout);
+      $$$1.removeData(this.element, this.constructor.DATA_KEY);
+      $$$1(this.element).off(this.constructor.EVENT_KEY);
+      $$$1(this.element).closest('.modal').off('hide.bs.modal');
+
+      if (this.tip) {
+        $$$1(this.tip).remove();
+      }
+
+      this._isEnabled = null;
+      this._timeout = null;
+      this._hoverState = null;
+      this._activeTrigger = null;
+
+      if (this._popper !== null) {
+        this._popper.destroy();
+      }
+
+      this._popper = null;
+      this.element = null;
+      this.config = null;
+      this.tip = null;
+    };
+
+    _proto.show = function show() {
+      var _this = this;
+
+      if ($$$1(this.element).css('display') === 'none') {
+        throw new Error('Please use show on visible elements');
+      }
+
+      var showEvent = $$$1.Event(this.constructor.Event.SHOW);
+
+      if (this.isWithContent() && this._isEnabled) {
+        $$$1(this.element).trigger(showEvent);
+        var isInTheDom = $$$1.contains(this.element.ownerDocument.documentElement, this.element);
+
+        if (showEvent.isDefaultPrevented() || !isInTheDom) {
+          return;
+        }
+
+        var tip = this.getTipElement();
+        var tipId = Util.getUID(this.constructor.NAME);
+        tip.setAttribute('id', tipId);
+        this.element.setAttribute('aria-describedby', tipId);
+        this.setContent();
+
+        if (this.config.animation) {
+          $$$1(tip).addClass(ClassName.FADE);
+        }
+
+        var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;
+
+        var attachment = this._getAttachment(placement);
+
+        this.addAttachmentClass(attachment);
+        var container = this.config.container === false ? document.body : $$$1(this.config.container);
+        $$$1(tip).data(this.constructor.DATA_KEY, this);
+
+        if (!$$$1.contains(this.element.ownerDocument.documentElement, this.tip)) {
+          $$$1(tip).appendTo(container);
+        }
+
+        $$$1(this.element).trigger(this.constructor.Event.INSERTED);
+        this._popper = new Popper(this.element, tip, {
+          placement: attachment,
+          modifiers: {
+            offset: {
+              offset: this.config.offset
+            },
+            flip: {
+              behavior: this.config.fallbackPlacement
+            },
+            arrow: {
+              element: Selector.ARROW
+            },
+            preventOverflow: {
+              boundariesElement: this.config.boundary
+            }
+          },
+          onCreate: function onCreate(data) {
+            if (data.originalPlacement !== data.placement) {
+              _this._handlePopperPlacementChange(data);
+            }
+          },
+          onUpdate: function onUpdate(data) {
+            _this._handlePopperPlacementChange(data);
+          }
+        });
+        $$$1(tip).addClass(ClassName.SHOW); // if this is a touch-enabled device we add extra
+        // empty mouseover listeners to the body's immediate children;
+        // only needed because of broken event delegation on iOS
+        // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
+
+        if ('ontouchstart' in document.documentElement) {
+          $$$1('body').children().on('mouseover', null, $$$1.noop);
+        }
+
+        var complete = function complete() {
+          if (_this.config.animation) {
+            _this._fixTransition();
+          }
+
+          var prevHoverState = _this._hoverState;
+          _this._hoverState = null;
+          $$$1(_this.element).trigger(_this.constructor.Event.SHOWN);
+
+          if (prevHoverState === HoverState.OUT) {
+            _this._leave(null, _this);
+          }
+        };
+
+        if (Util.supportsTransitionEnd() && $$$1(this.tip).hasClass(ClassName.FADE)) {
+          $$$1(this.tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(Tooltip._TRANSITION_DURATION);
+        } else {
+          complete();
+        }
+      }
+    };
+
+    _proto.hide = function hide(callback) {
+      var _this2 = this;
+
+      var tip = this.getTipElement();
+      var hideEvent = $$$1.Event(this.constructor.Event.HIDE);
+
+      var complete = function complete() {
+        if (_this2._hoverState !== HoverState.SHOW && tip.parentNode) {
+          tip.parentNode.removeChild(tip);
+        }
+
+        _this2._cleanTipClass();
+
+        _this2.element.removeAttribute('aria-describedby');
+
+        $$$1(_this2.element).trigger(_this2.constructor.Event.HIDDEN);
+
+        if (_this2._popper !== null) {
+          _this2._popper.destroy();
+        }
+
+        if (callback) {
+          callback();
+        }
+      };
+
+      $$$1(this.element).trigger(hideEvent);
+
+      if (hideEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      $$$1(tip).removeClass(ClassName.SHOW); // if this is a touch-enabled device we remove the extra
+      // empty mouseover listeners we added for iOS support
+
+      if ('ontouchstart' in document.documentElement) {
+        $$$1('body').children().off('mouseover', null, $$$1.noop);
+      }
+
+      this._activeTrigger[Trigger.CLICK] = false;
+      this._activeTrigger[Trigger.FOCUS] = false;
+      this._activeTrigger[Trigger.HOVER] = false;
+
+      if (Util.supportsTransitionEnd() && $$$1(this.tip).hasClass(ClassName.FADE)) {
+        $$$1(tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);
+      } else {
+        complete();
+      }
+
+      this._hoverState = '';
+    };
+
+    _proto.update = function update() {
+      if (this._popper !== null) {
+        this._popper.scheduleUpdate();
+      }
+    }; // protected
+
+
+    _proto.isWithContent = function isWithContent() {
+      return Boolean(this.getTitle());
+    };
+
+    _proto.addAttachmentClass = function addAttachmentClass(attachment) {
+      $$$1(this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
+    };
+
+    _proto.getTipElement = function getTipElement() {
+      this.tip = this.tip || $$$1(this.config.template)[0];
+      return this.tip;
+    };
+
+    _proto.setContent = function setContent() {
+      var $tip = $$$1(this.getTipElement());
+      this.setElementContent($tip.find(Selector.TOOLTIP_INNER), this.getTitle());
+      $tip.removeClass(ClassName.FADE + " " + ClassName.SHOW);
+    };
+
+    _proto.setElementContent = function setElementContent($element, content) {
+      var html = this.config.html;
+
+      if (typeof content === 'object' && (content.nodeType || content.jquery)) {
+        // content is a DOM node or a jQuery
+        if (html) {
+          if (!$$$1(content).parent().is($element)) {
+            $element.empty().append(content);
+          }
+        } else {
+          $element.text($$$1(content).text());
+        }
+      } else {
+        $element[html ? 'html' : 'text'](content);
+      }
+    };
+
+    _proto.getTitle = function getTitle() {
+      var title = this.element.getAttribute('data-original-title');
+
+      if (!title) {
+        title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
+      }
+
+      return title;
+    }; // private
+
+
+    _proto._getAttachment = function _getAttachment(placement) {
+      return AttachmentMap[placement.toUpperCase()];
+    };
+
+    _proto._setListeners = function _setListeners() {
+      var _this3 = this;
+
+      var triggers = this.config.trigger.split(' ');
+      triggers.forEach(function (trigger) {
+        if (trigger === 'click') {
+          $$$1(_this3.element).on(_this3.constructor.Event.CLICK, _this3.config.selector, function (event) {
+            return _this3.toggle(event);
+          });
+        } else if (trigger !== Trigger.MANUAL) {
+          var eventIn = trigger === Trigger.HOVER ? _this3.constructor.Event.MOUSEENTER : _this3.constructor.Event.FOCUSIN;
+          var eventOut = trigger === Trigger.HOVER ? _this3.constructor.Event.MOUSELEAVE : _this3.constructor.Event.FOCUSOUT;
+          $$$1(_this3.element).on(eventIn, _this3.config.selector, function (event) {
+            return _this3._enter(event);
+          }).on(eventOut, _this3.config.selector, function (event) {
+            return _this3._leave(event);
+          });
+        }
+
+        $$$1(_this3.element).closest('.modal').on('hide.bs.modal', function () {
+          return _this3.hide();
+        });
+      });
+
+      if (this.config.selector) {
+        this.config = _extends({}, this.config, {
+          trigger: 'manual',
+          selector: ''
+        });
+      } else {
+        this._fixTitle();
+      }
+    };
+
+    _proto._fixTitle = function _fixTitle() {
+      var titleType = typeof this.element.getAttribute('data-original-title');
+
+      if (this.element.getAttribute('title') || titleType !== 'string') {
+        this.element.setAttribute('data-original-title', this.element.getAttribute('title') || '');
+        this.element.setAttribute('title', '');
+      }
+    };
+
+    _proto._enter = function _enter(event, context) {
+      var dataKey = this.constructor.DATA_KEY;
+      context = context || $$$1(event.currentTarget).data(dataKey);
+
+      if (!context) {
+        context = new this.constructor(event.currentTarget, this._getDelegateConfig());
+        $$$1(event.currentTarget).data(dataKey, context);
+      }
+
+      if (event) {
+        context._activeTrigger[event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER] = true;
+      }
+
+      if ($$$1(context.getTipElement()).hasClass(ClassName.SHOW) || context._hoverState === HoverState.SHOW) {
+        context._hoverState = HoverState.SHOW;
+        return;
+      }
+
+      clearTimeout(context._timeout);
+      context._hoverState = HoverState.SHOW;
+
+      if (!context.config.delay || !context.config.delay.show) {
+        context.show();
+        return;
+      }
+
+      context._timeout = setTimeout(function () {
+        if (context._hoverState === HoverState.SHOW) {
+          context.show();
+        }
+      }, context.config.delay.show);
+    };
+
+    _proto._leave = function _leave(event, context) {
+      var dataKey = this.constructor.DATA_KEY;
+      context = context || $$$1(event.currentTarget).data(dataKey);
+
+      if (!context) {
+        context = new this.constructor(event.currentTarget, this._getDelegateConfig());
+        $$$1(event.currentTarget).data(dataKey, context);
+      }
+
+      if (event) {
+        context._activeTrigger[event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER] = false;
+      }
+
+      if (context._isWithActiveTrigger()) {
+        return;
+      }
+
+      clearTimeout(context._timeout);
+      context._hoverState = HoverState.OUT;
+
+      if (!context.config.delay || !context.config.delay.hide) {
+        context.hide();
+        return;
+      }
+
+      context._timeout = setTimeout(function () {
+        if (context._hoverState === HoverState.OUT) {
+          context.hide();
+        }
+      }, context.config.delay.hide);
+    };
+
+    _proto._isWithActiveTrigger = function _isWithActiveTrigger() {
+      for (var trigger in this._activeTrigger) {
+        if (this._activeTrigger[trigger]) {
+          return true;
+        }
+      }
+
+      return false;
+    };
+
+    _proto._getConfig = function _getConfig(config) {
+      config = _extends({}, this.constructor.Default, $$$1(this.element).data(), config);
+
+      if (typeof config.delay === 'number') {
+        config.delay = {
+          show: config.delay,
+          hide: config.delay
+        };
+      }
+
+      if (typeof config.title === 'number') {
+        config.title = config.title.toString();
+      }
+
+      if (typeof config.content === 'number') {
+        config.content = config.content.toString();
+      }
+
+      Util.typeCheckConfig(NAME, config, this.constructor.DefaultType);
+      return config;
+    };
+
+    _proto._getDelegateConfig = function _getDelegateConfig() {
+      var config = {};
+
+      if (this.config) {
+        for (var key in this.config) {
+          if (this.constructor.Default[key] !== this.config[key]) {
+            config[key] = this.config[key];
+          }
+        }
+      }
+
+      return config;
+    };
+
+    _proto._cleanTipClass = function _cleanTipClass() {
+      var $tip = $$$1(this.getTipElement());
+      var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);
+
+      if (tabClass !== null && tabClass.length > 0) {
+        $tip.removeClass(tabClass.join(''));
+      }
+    };
+
+    _proto._handlePopperPlacementChange = function _handlePopperPlacementChange(data) {
+      this._cleanTipClass();
+
+      this.addAttachmentClass(this._getAttachment(data.placement));
+    };
+
+    _proto._fixTransition = function _fixTransition() {
+      var tip = this.getTipElement();
+      var initConfigAnimation = this.config.animation;
+
+      if (tip.getAttribute('x-placement') !== null) {
+        return;
+      }
+
+      $$$1(tip).removeClass(ClassName.FADE);
+      this.config.animation = false;
+      this.hide();
+      this.show();
+      this.config.animation = initConfigAnimation;
+    }; // static
+
+
+    Tooltip._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        var _config = typeof config === 'object' && config;
+
+        if (!data && /dispose|hide/.test(config)) {
+          return;
+        }
+
+        if (!data) {
+          data = new Tooltip(this, _config);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config]();
+        }
+      });
+    };
+
+    _createClass(Tooltip, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }, {
+      key: "NAME",
+      get: function get() {
+        return NAME;
+      }
+    }, {
+      key: "DATA_KEY",
+      get: function get() {
+        return DATA_KEY;
+      }
+    }, {
+      key: "Event",
+      get: function get() {
+        return Event;
+      }
+    }, {
+      key: "EVENT_KEY",
+      get: function get() {
+        return EVENT_KEY;
+      }
+    }, {
+      key: "DefaultType",
+      get: function get() {
+        return DefaultType;
+      }
+    }]);
+    return Tooltip;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1.fn[NAME] = Tooltip._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Tooltip;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Tooltip._jQueryInterface;
+  };
+
+  return Tooltip;
+}($, Popper);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): popover.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Popover = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'popover';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.popover';
+  var EVENT_KEY = "." + DATA_KEY;
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var CLASS_PREFIX = 'bs-popover';
+  var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
+  var Default = _extends({}, Tooltip.Default, {
+    placement: 'right',
+    trigger: 'click',
+    content: '',
+    template: '<div class="popover" role="tooltip">' + '<div class="arrow"></div>' + '<h3 class="popover-header"></h3>' + '<div class="popover-body"></div></div>'
+  });
+  var DefaultType = _extends({}, Tooltip.DefaultType, {
+    content: '(string|element|function)'
+  });
+  var ClassName = {
+    FADE: 'fade',
+    SHOW: 'show'
+  };
+  var Selector = {
+    TITLE: '.popover-header',
+    CONTENT: '.popover-body'
+  };
+  var Event = {
+    HIDE: "hide" + EVENT_KEY,
+    HIDDEN: "hidden" + EVENT_KEY,
+    SHOW: "show" + EVENT_KEY,
+    SHOWN: "shown" + EVENT_KEY,
+    INSERTED: "inserted" + EVENT_KEY,
+    CLICK: "click" + EVENT_KEY,
+    FOCUSIN: "focusin" + EVENT_KEY,
+    FOCUSOUT: "focusout" + EVENT_KEY,
+    MOUSEENTER: "mouseenter" + EVENT_KEY,
+    MOUSELEAVE: "mouseleave" + EVENT_KEY
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Popover =
+  /*#__PURE__*/
+  function (_Tooltip) {
+    _inheritsLoose(Popover, _Tooltip);
+
+    function Popover() {
+      return _Tooltip.apply(this, arguments) || this;
+    }
+
+    var _proto = Popover.prototype;
+
+    // overrides
+    _proto.isWithContent = function isWithContent() {
+      return this.getTitle() || this._getContent();
+    };
+
+    _proto.addAttachmentClass = function addAttachmentClass(attachment) {
+      $$$1(this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
+    };
+
+    _proto.getTipElement = function getTipElement() {
+      this.tip = this.tip || $$$1(this.config.template)[0];
+      return this.tip;
+    };
+
+    _proto.setContent = function setContent() {
+      var $tip = $$$1(this.getTipElement()); // we use append for html objects to maintain js events
+
+      this.setElementContent($tip.find(Selector.TITLE), this.getTitle());
+
+      var content = this._getContent();
+
+      if (typeof content === 'function') {
+        content = content.call(this.element);
+      }
+
+      this.setElementContent($tip.find(Selector.CONTENT), content);
+      $tip.removeClass(ClassName.FADE + " " + ClassName.SHOW);
+    }; // private
+
+
+    _proto._getContent = function _getContent() {
+      return this.element.getAttribute('data-content') || this.config.content;
+    };
+
+    _proto._cleanTipClass = function _cleanTipClass() {
+      var $tip = $$$1(this.getTipElement());
+      var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);
+
+      if (tabClass !== null && tabClass.length > 0) {
+        $tip.removeClass(tabClass.join(''));
+      }
+    }; // static
+
+
+    Popover._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        var _config = typeof config === 'object' ? config : null;
+
+        if (!data && /destroy|hide/.test(config)) {
+          return;
+        }
+
+        if (!data) {
+          data = new Popover(this, _config);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config]();
+        }
+      });
+    };
+
+    _createClass(Popover, null, [{
+      key: "VERSION",
+      // getters
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }, {
+      key: "NAME",
+      get: function get() {
+        return NAME;
+      }
+    }, {
+      key: "DATA_KEY",
+      get: function get() {
+        return DATA_KEY;
+      }
+    }, {
+      key: "Event",
+      get: function get() {
+        return Event;
+      }
+    }, {
+      key: "EVENT_KEY",
+      get: function get() {
+        return EVENT_KEY;
+      }
+    }, {
+      key: "DefaultType",
+      get: function get() {
+        return DefaultType;
+      }
+    }]);
+    return Popover;
+  }(Tooltip);
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1.fn[NAME] = Popover._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Popover;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Popover._jQueryInterface;
+  };
+
+  return Popover;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): scrollspy.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var ScrollSpy = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'scrollspy';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.scrollspy';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var Default = {
+    offset: 10,
+    method: 'auto',
+    target: ''
+  };
+  var DefaultType = {
+    offset: 'number',
+    method: 'string',
+    target: '(string|element)'
+  };
+  var Event = {
+    ACTIVATE: "activate" + EVENT_KEY,
+    SCROLL: "scroll" + EVENT_KEY,
+    LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    DROPDOWN_ITEM: 'dropdown-item',
+    DROPDOWN_MENU: 'dropdown-menu',
+    ACTIVE: 'active'
+  };
+  var Selector = {
+    DATA_SPY: '[data-spy="scroll"]',
+    ACTIVE: '.active',
+    NAV_LIST_GROUP: '.nav, .list-group',
+    NAV_LINKS: '.nav-link',
+    NAV_ITEMS: '.nav-item',
+    LIST_ITEMS: '.list-group-item',
+    DROPDOWN: '.dropdown',
+    DROPDOWN_ITEMS: '.dropdown-item',
+    DROPDOWN_TOGGLE: '.dropdown-toggle'
+  };
+  var OffsetMethod = {
+    OFFSET: 'offset',
+    POSITION: 'position'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var ScrollSpy =
+  /*#__PURE__*/
+  function () {
+    function ScrollSpy(element, config) {
+      var _this = this;
+
+      this._element = element;
+      this._scrollElement = element.tagName === 'BODY' ? window : element;
+      this._config = this._getConfig(config);
+      this._selector = this._config.target + " " + Selector.NAV_LINKS + "," + (this._config.target + " " + Selector.LIST_ITEMS + ",") + (this._config.target + " " + Selector.DROPDOWN_ITEMS);
+      this._offsets = [];
+      this._targets = [];
+      this._activeTarget = null;
+      this._scrollHeight = 0;
+      $$$1(this._scrollElement).on(Event.SCROLL, function (event) {
+        return _this._process(event);
+      });
+      this.refresh();
+
+      this._process();
+    } // getters
+
+
+    var _proto = ScrollSpy.prototype;
+
+    // public
+    _proto.refresh = function refresh() {
+      var _this2 = this;
+
+      var autoMethod = this._scrollElement !== this._scrollElement.window ? OffsetMethod.POSITION : OffsetMethod.OFFSET;
+      var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
+      var offsetBase = offsetMethod === OffsetMethod.POSITION ? this._getScrollTop() : 0;
+      this._offsets = [];
+      this._targets = [];
+      this._scrollHeight = this._getScrollHeight();
+      var targets = $$$1.makeArray($$$1(this._selector));
+      targets.map(function (element) {
+        var target;
+        var targetSelector = Util.getSelectorFromElement(element);
+
+        if (targetSelector) {
+          target = $$$1(targetSelector)[0];
+        }
+
+        if (target) {
+          var targetBCR = target.getBoundingClientRect();
+
+          if (targetBCR.width || targetBCR.height) {
+            // todo (fat): remove sketch reliance on jQuery position/offset
+            return [$$$1(target)[offsetMethod]().top + offsetBase, targetSelector];
+          }
+        }
+
+        return null;
+      }).filter(function (item) {
+        return item;
+      }).sort(function (a, b) {
+        return a[0] - b[0];
+      }).forEach(function (item) {
+        _this2._offsets.push(item[0]);
+
+        _this2._targets.push(item[1]);
+      });
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      $$$1(this._scrollElement).off(EVENT_KEY);
+      this._element = null;
+      this._scrollElement = null;
+      this._config = null;
+      this._selector = null;
+      this._offsets = null;
+      this._targets = null;
+      this._activeTarget = null;
+      this._scrollHeight = null;
+    }; // private
+
+
+    _proto._getConfig = function _getConfig(config) {
+      config = _extends({}, Default, config);
+
+      if (typeof config.target !== 'string') {
+        var id = $$$1(config.target).attr('id');
+
+        if (!id) {
+          id = Util.getUID(NAME);
+          $$$1(config.target).attr('id', id);
+        }
+
+        config.target = "#" + id;
+      }
+
+      Util.typeCheckConfig(NAME, config, DefaultType);
+      return config;
+    };
+
+    _proto._getScrollTop = function _getScrollTop() {
+      return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
+    };
+
+    _proto._getScrollHeight = function _getScrollHeight() {
+      return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
+    };
+
+    _proto._getOffsetHeight = function _getOffsetHeight() {
+      return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
+    };
+
+    _proto._process = function _process() {
+      var scrollTop = this._getScrollTop() + this._config.offset;
+
+      var scrollHeight = this._getScrollHeight();
+
+      var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();
+
+      if (this._scrollHeight !== scrollHeight) {
+        this.refresh();
+      }
+
+      if (scrollTop >= maxScroll) {
+        var target = this._targets[this._targets.length - 1];
+
+        if (this._activeTarget !== target) {
+          this._activate(target);
+        }
+
+        return;
+      }
+
+      if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
+        this._activeTarget = null;
+
+        this._clear();
+
+        return;
+      }
+
+      for (var i = this._offsets.length; i--;) {
+        var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);
+
+        if (isActiveTarget) {
+          this._activate(this._targets[i]);
+        }
+      }
+    };
+
+    _proto._activate = function _activate(target) {
+      this._activeTarget = target;
+
+      this._clear();
+
+      var queries = this._selector.split(','); // eslint-disable-next-line arrow-body-style
+
+
+      queries = queries.map(function (selector) {
+        return selector + "[data-target=\"" + target + "\"]," + (selector + "[href=\"" + target + "\"]");
+      });
+      var $link = $$$1(queries.join(','));
+
+      if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
+        $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE);
+        $link.addClass(ClassName.ACTIVE);
+      } else {
+        // Set triggered link as active
+        $link.addClass(ClassName.ACTIVE); // Set triggered links parents as active
+        // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
+
+        $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_LINKS + ", " + Selector.LIST_ITEMS).addClass(ClassName.ACTIVE); // Handle special case when .nav-link is inside .nav-item
+
+        $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE);
+      }
+
+      $$$1(this._scrollElement).trigger(Event.ACTIVATE, {
+        relatedTarget: target
+      });
+    };
+
+    _proto._clear = function _clear() {
+      $$$1(this._selector).filter(Selector.ACTIVE).removeClass(ClassName.ACTIVE);
+    }; // static
+
+
+    ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var data = $$$1(this).data(DATA_KEY);
+
+        var _config = typeof config === 'object' && config;
+
+        if (!data) {
+          data = new ScrollSpy(this, _config);
+          $$$1(this).data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config]();
+        }
+      });
+    };
+
+    _createClass(ScrollSpy, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }, {
+      key: "Default",
+      get: function get() {
+        return Default;
+      }
+    }]);
+    return ScrollSpy;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(window).on(Event.LOAD_DATA_API, function () {
+    var scrollSpys = $$$1.makeArray($$$1(Selector.DATA_SPY));
+
+    for (var i = scrollSpys.length; i--;) {
+      var $spy = $$$1(scrollSpys[i]);
+
+      ScrollSpy._jQueryInterface.call($spy, $spy.data());
+    }
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = ScrollSpy._jQueryInterface;
+  $$$1.fn[NAME].Constructor = ScrollSpy;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return ScrollSpy._jQueryInterface;
+  };
+
+  return ScrollSpy;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-beta.3): tab.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+var Tab = function ($$$1) {
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  var NAME = 'tab';
+  var VERSION = '4.0.0-beta.3';
+  var DATA_KEY = 'bs.tab';
+  var EVENT_KEY = "." + DATA_KEY;
+  var DATA_API_KEY = '.data-api';
+  var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
+  var TRANSITION_DURATION = 150;
+  var Event = {
+    HIDE: "hide" + EVENT_KEY,
+    HIDDEN: "hidden" + EVENT_KEY,
+    SHOW: "show" + EVENT_KEY,
+    SHOWN: "shown" + EVENT_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    DROPDOWN_MENU: 'dropdown-menu',
+    ACTIVE: 'active',
+    DISABLED: 'disabled',
+    FADE: 'fade',
+    SHOW: 'show'
+  };
+  var Selector = {
+    DROPDOWN: '.dropdown',
+    NAV_LIST_GROUP: '.nav, .list-group',
+    ACTIVE: '.active',
+    ACTIVE_UL: '> li > .active',
+    DATA_TOGGLE: '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
+    DROPDOWN_TOGGLE: '.dropdown-toggle',
+    DROPDOWN_ACTIVE_CHILD: '> .dropdown-menu .active'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */
+
+  };
+
+  var Tab =
+  /*#__PURE__*/
+  function () {
+    function Tab(element) {
+      this._element = element;
+    } // getters
+
+
+    var _proto = Tab.prototype;
+
+    // public
+    _proto.show = function show() {
+      var _this = this;
+
+      if (this._element.parentNode && this._element.parentNode.nodeType === Node.ELEMENT_NODE && $$$1(this._element).hasClass(ClassName.ACTIVE) || $$$1(this._element).hasClass(ClassName.DISABLED)) {
+        return;
+      }
+
+      var target;
+      var previous;
+      var listElement = $$$1(this._element).closest(Selector.NAV_LIST_GROUP)[0];
+      var selector = Util.getSelectorFromElement(this._element);
+
+      if (listElement) {
+        var itemSelector = listElement.nodeName === 'UL' ? Selector.ACTIVE_UL : Selector.ACTIVE;
+        previous = $$$1.makeArray($$$1(listElement).find(itemSelector));
+        previous = previous[previous.length - 1];
+      }
+
+      var hideEvent = $$$1.Event(Event.HIDE, {
+        relatedTarget: this._element
+      });
+      var showEvent = $$$1.Event(Event.SHOW, {
+        relatedTarget: previous
+      });
+
+      if (previous) {
+        $$$1(previous).trigger(hideEvent);
+      }
+
+      $$$1(this._element).trigger(showEvent);
+
+      if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) {
+        return;
+      }
+
+      if (selector) {
+        target = $$$1(selector)[0];
+      }
+
+      this._activate(this._element, listElement);
+
+      var complete = function complete() {
+        var hiddenEvent = $$$1.Event(Event.HIDDEN, {
+          relatedTarget: _this._element
+        });
+        var shownEvent = $$$1.Event(Event.SHOWN, {
+          relatedTarget: previous
+        });
+        $$$1(previous).trigger(hiddenEvent);
+        $$$1(_this._element).trigger(shownEvent);
+      };
+
+      if (target) {
+        this._activate(target, target.parentNode, complete);
+      } else {
+        complete();
+      }
+    };
+
+    _proto.dispose = function dispose() {
+      $$$1.removeData(this._element, DATA_KEY);
+      this._element = null;
+    }; // private
+
+
+    _proto._activate = function _activate(element, container, callback) {
+      var _this2 = this;
+
+      var activeElements;
+
+      if (container.nodeName === 'UL') {
+        activeElements = $$$1(container).find(Selector.ACTIVE_UL);
+      } else {
+        activeElements = $$$1(container).children(Selector.ACTIVE);
+      }
+
+      var active = activeElements[0];
+      var isTransitioning = callback && Util.supportsTransitionEnd() && active && $$$1(active).hasClass(ClassName.FADE);
+
+      var complete = function complete() {
+        return _this2._transitionComplete(element, active, callback);
+      };
+
+      if (active && isTransitioning) {
+        $$$1(active).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);
+      } else {
+        complete();
+      }
+    };
+
+    _proto._transitionComplete = function _transitionComplete(element, active, callback) {
+      if (active) {
+        $$$1(active).removeClass(ClassName.SHOW + " " + ClassName.ACTIVE);
+        var dropdownChild = $$$1(active.parentNode).find(Selector.DROPDOWN_ACTIVE_CHILD)[0];
+
+        if (dropdownChild) {
+          $$$1(dropdownChild).removeClass(ClassName.ACTIVE);
+        }
+
+        if (active.getAttribute('role') === 'tab') {
+          active.setAttribute('aria-selected', false);
+        }
+      }
+
+      $$$1(element).addClass(ClassName.ACTIVE);
+
+      if (element.getAttribute('role') === 'tab') {
+        element.setAttribute('aria-selected', true);
+      }
+
+      Util.reflow(element);
+      $$$1(element).addClass(ClassName.SHOW);
+
+      if (element.parentNode && $$$1(element.parentNode).hasClass(ClassName.DROPDOWN_MENU)) {
+        var dropdownElement = $$$1(element).closest(Selector.DROPDOWN)[0];
+
+        if (dropdownElement) {
+          $$$1(dropdownElement).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE);
+        }
+
+        element.setAttribute('aria-expanded', true);
+      }
+
+      if (callback) {
+        callback();
+      }
+    }; // static
+
+
+    Tab._jQueryInterface = function _jQueryInterface(config) {
+      return this.each(function () {
+        var $this = $$$1(this);
+        var data = $this.data(DATA_KEY);
+
+        if (!data) {
+          data = new Tab(this);
+          $this.data(DATA_KEY, data);
+        }
+
+        if (typeof config === 'string') {
+          if (typeof data[config] === 'undefined') {
+            throw new Error("No method named \"" + config + "\"");
+          }
+
+          data[config]();
+        }
+      });
+    };
+
+    _createClass(Tab, null, [{
+      key: "VERSION",
+      get: function get() {
+        return VERSION;
+      }
+    }]);
+    return Tab;
+  }();
+  /**
+   * ------------------------------------------------------------------------
+   * Data Api implementation
+   * ------------------------------------------------------------------------
+   */
+
+
+  $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
+    event.preventDefault();
+
+    Tab._jQueryInterface.call($$$1(this), 'show');
+  });
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+
+  $$$1.fn[NAME] = Tab._jQueryInterface;
+  $$$1.fn[NAME].Constructor = Tab;
+
+  $$$1.fn[NAME].noConflict = function () {
+    $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Tab._jQueryInterface;
+  };
+
+  return Tab;
+}($);
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v4.0.0-alpha.6): index.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+(function ($$$1) {
+  if (typeof $$$1 === 'undefined') {
+    throw new Error('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.');
+  }
+
+  var version = $$$1.fn.jquery.split(' ')[0].split('.');
+  var minMajor = 1;
+  var ltMajor = 2;
+  var minMinor = 9;
+  var minPatch = 1;
+  var maxMajor = 4;
+
+  if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
+    throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0');
+  }
+})($);
+
+exports.Util = Util;
+exports.Alert = Alert;
+exports.Button = Button;
+exports.Carousel = Carousel;
+exports.Collapse = Collapse;
+exports.Dropdown = Dropdown;
+exports.Modal = Modal;
+exports.Popover = Popover;
+exports.Scrollspy = ScrollSpy;
+exports.Tab = Tab;
+exports.Tooltip = Tooltip;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
+//# sourceMappingURL=bootstrap.bundle.js.map