Merge pull request #794 from dawnbreak/dev

Replace Mardownify library with html-to-markdown library.

44 files changed, 2372 insertions, 3352 deletions

diff --git a/composer.json b/composer.json
index 44606ff2b..9738b21e8 100644
--- a/composer.json
+++ b/composer.json
@@ -30,10 +30,10 @@
 		"ext-openssl" : "*",
 		"sabre/dav" : "~3.2",
 		"michelf/php-markdown" : "^1.7",
-		"pixel418/markdownify": "^2.2",
 		"bshaffer/oauth2-server-php": "^1.9",
 		"ezyang/htmlpurifier": "^4.9",
-		"simplepie/simplepie": "~1.5"
+		"simplepie/simplepie": "~1.5",
+		"league/html-to-markdown": "^4.4"
 	},
 	"require-dev" : {
 		"php" : ">=7.0",
diff --git a/composer.lock b/composer.lock
index 0dab197f9..84e429285 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "21511c39f481ecdc20210f885d840787",
+    "content-hash": "527df9ff589187351b62bffb0c38e3a6",
     "packages": [
         {
             "name": "bshaffer/oauth2-server-php",
@@ -110,111 +110,119 @@
             "time": "2017-03-13T06:30:53+00:00"
         },
         {
-            "name": "michelf/php-markdown",
-            "version": "1.7.0",
+            "name": "league/html-to-markdown",
+            "version": "4.4.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/michelf/php-markdown.git",
-                "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220"
+                "url": "https://github.com/thephpleague/html-to-markdown.git",
+                "reference": "82ea375b5b2b1da1da222644c0565c695bf88186"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/michelf/php-markdown/zipball/1f51cc520948f66cd2af8cbc45a5ee175e774220",
-                "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220",
+                "url": "https://api.github.com/repos/thephpleague/html-to-markdown/zipball/82ea375b5b2b1da1da222644c0565c695bf88186",
+                "reference": "82ea375b5b2b1da1da222644c0565c695bf88186",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "ext-dom": "*",
+                "ext-xml": "*",
+                "php": ">=5.3.3"
+            },
+            "require-dev": {
+                "mikehaertl/php-shellcommand": "~1.1.0",
+                "phpunit/phpunit": "4.*",
+                "scrutinizer/ocular": "~1.1"
             },
+            "bin": [
+                "bin/html-to-markdown"
+            ],
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-lib": "1.4.x-dev"
+                    "dev-master": "4.5-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Michelf": ""
+                "psr-4": {
+                    "League\\HTMLToMarkdown\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "BSD-3-Clause"
+                "MIT"
             ],
             "authors": [
                 {
-                    "name": "Michel Fortin",
-                    "email": "michel.fortin@michelf.ca",
-                    "homepage": "https://michelf.ca/",
-                    "role": "Developer"
+                    "name": "Colin O'Dell",
+                    "email": "colinodell@gmail.com",
+                    "homepage": "http://www.colinodell.com",
+                    "role": "Lead Developer"
                 },
                 {
-                    "name": "John Gruber",
-                    "homepage": "https://daringfireball.net/"
+                    "name": "Nick Cernis",
+                    "email": "nick@cern.is",
+                    "homepage": "http://modernnerd.net",
+                    "role": "Original Author"
                 }
             ],
-            "description": "PHP Markdown",
-            "homepage": "https://michelf.ca/projects/php-markdown/",
+            "description": "An HTML-to-markdown conversion helper for PHP",
+            "homepage": "https://github.com/thephpleague/html-to-markdown",
             "keywords": [
+                "html",
                 "markdown"
             ],
-            "time": "2016-10-29T18:58:20+00:00"
+            "time": "2017-03-16T00:45:59+00:00"
         },
         {
-            "name": "pixel418/markdownify",
-            "version": "v2.2.1",
+            "name": "michelf/php-markdown",
+            "version": "1.7.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/Elephant418/Markdownify.git",
-                "reference": "0160677f04c784550dd10fd72fdf3994967db848"
+                "url": "https://github.com/michelf/php-markdown.git",
+                "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Elephant418/Markdownify/zipball/0160677f04c784550dd10fd72fdf3994967db848",
-                "reference": "0160677f04c784550dd10fd72fdf3994967db848",
+                "url": "https://api.github.com/repos/michelf/php-markdown/zipball/1f51cc520948f66cd2af8cbc45a5ee175e774220",
+                "reference": "1f51cc520948f66cd2af8cbc45a5ee175e774220",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.0"
             },
-            "require-dev": {
-                "phpunit/phpunit": "^4.8"
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-lib": "1.4.x-dev"
+                }
             },
-            "type": "lib",
             "autoload": {
-                "psr-4": {
-                    "Markdownify\\": "src",
-                    "Test\\Markdownify\\": "test"
+                "psr-0": {
+                    "Michelf": ""
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "LGPL"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
-                    "name": "Peter Kruithof",
-                    "email": "pkruithof@gmail.com",
-                    "homepage": "http://pkruithof.tumblr.com/"
-                },
-                {
-                    "name": "Milian Wolff",
-                    "email": "mail@milianw.de",
-                    "homepage": "http://milianw.de"
+                    "name": "Michel Fortin",
+                    "email": "michel.fortin@michelf.ca",
+                    "homepage": "https://michelf.ca/",
+                    "role": "Developer"
                 },
                 {
-                    "name": "Thomas Zilliox",
-                    "email": "hello@tzi.fr",
-                    "homepage": "http://tzi.fr"
+                    "name": "John Gruber",
+                    "homepage": "https://daringfireball.net/"
                 }
             ],
-            "description": "The HTML to Markdown converter for PHP ",
-            "homepage": "https://github.com/elephant418/Markdownify",
+            "description": "PHP Markdown",
+            "homepage": "https://michelf.ca/projects/php-markdown/",
             "keywords": [
-                "markdown",
-                "markdownify"
+                "markdown"
             ],
-            "time": "2016-09-21T13:01:43+00:00"
+            "time": "2016-10-29T18:58:20+00:00"
         },
         {
             "name": "psr/log",
diff --git a/include/markdown.php b/include/markdown.php
index a9617f72b..39569a0f6 100644
--- a/include/markdown.php
+++ b/include/markdown.php
@@ -5,7 +5,7 @@
  */
 
 use Michelf\MarkdownExtra;
-use Markdownify\Converter;
+use League\HTMLToMarkdown\HtmlConverter;
 
 require_once("include/oembed.php");
 require_once("include/event.php");
@@ -495,9 +495,8 @@ function bb2diaspora($Text, $preserve_nl = false, $fordiaspora = true) {
 	$Text = str_replace(array('<','>','&'),array('&_lt_;','&_gt_;','&_amp_;'),$Text);
 
 	// Now convert HTML to Markdown
-	$md = new Converter(Converter::LINK_AFTER_CONTENT, false, false);
-	$Text = $md->parseString($Text);
-
+	$md = new HtmlConverter();
+	$Text = $md->convert($Text);
 
 	// It also adds backslashes to our attempt at getting around the html entity preservation for some weird reason.
 
diff --git a/vendor/bin/html-to-markdown b/vendor/bin/html-to-markdown
new file mode 120000
index 000000000..6f8d9d2b1
--- /dev/null
+++ b/vendor/bin/html-to-markdown
@@ -0,0 +1 @@
+../league/html-to-markdown/bin/html-to-markdown
\ No newline at end of file
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
index 5899fb9ed..c7f3d1fa1 100644
--- a/vendor/composer/autoload_classmap.php
+++ b/vendor/composer/autoload_classmap.php
@@ -241,9 +241,29 @@ return array(
     'HTMLPurifier_VarParser_Native' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier/VarParser/Native.php',
     'HTMLPurifier_Zipper' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier/Zipper.php',
     'Hubzilla\\Import\\Import' => $baseDir . '/include/Import/Importer.php',
-    'Markdownify\\Converter' => $vendorDir . '/pixel418/markdownify/src/Converter.php',
-    'Markdownify\\ConverterExtra' => $vendorDir . '/pixel418/markdownify/src/ConverterExtra.php',
-    'Markdownify\\Parser' => $vendorDir . '/pixel418/markdownify/src/Parser.php',
+    'League\\HTMLToMarkdown\\Configuration' => $vendorDir . '/league/html-to-markdown/src/Configuration.php',
+    'League\\HTMLToMarkdown\\ConfigurationAwareInterface' => $vendorDir . '/league/html-to-markdown/src/ConfigurationAwareInterface.php',
+    'League\\HTMLToMarkdown\\Converter\\BlockquoteConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/BlockquoteConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\CodeConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/CodeConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\CommentConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/CommentConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\ConverterInterface' => $vendorDir . '/league/html-to-markdown/src/Converter/ConverterInterface.php',
+    'League\\HTMLToMarkdown\\Converter\\DefaultConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/DefaultConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\DivConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/DivConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\EmphasisConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/EmphasisConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\HardBreakConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/HardBreakConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\HeaderConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/HeaderConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\HorizontalRuleConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/HorizontalRuleConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\ImageConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/ImageConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\LinkConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/LinkConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\ListBlockConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/ListBlockConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\ListItemConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/ListItemConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\ParagraphConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/ParagraphConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\PreformattedConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/PreformattedConverter.php',
+    'League\\HTMLToMarkdown\\Converter\\TextConverter' => $vendorDir . '/league/html-to-markdown/src/Converter/TextConverter.php',
+    'League\\HTMLToMarkdown\\Element' => $vendorDir . '/league/html-to-markdown/src/Element.php',
+    'League\\HTMLToMarkdown\\ElementInterface' => $vendorDir . '/league/html-to-markdown/src/ElementInterface.php',
+    'League\\HTMLToMarkdown\\Environment' => $vendorDir . '/league/html-to-markdown/src/Environment.php',
+    'League\\HTMLToMarkdown\\HtmlConverter' => $vendorDir . '/league/html-to-markdown/src/HtmlConverter.php',
     'Michelf\\Markdown' => $vendorDir . '/michelf/php-markdown/Michelf/Markdown.php',
     'Michelf\\MarkdownExtra' => $vendorDir . '/michelf/php-markdown/Michelf/MarkdownExtra.php',
     'Michelf\\MarkdownInterface' => $vendorDir . '/michelf/php-markdown/Michelf/MarkdownInterface.php',
diff --git a/vendor/composer/autoload_psr4.php b/vendor/composer/autoload_psr4.php
index 00a183cc1..48bc1158a 100644
--- a/vendor/composer/autoload_psr4.php
+++ b/vendor/composer/autoload_psr4.php
@@ -7,7 +7,6 @@ $baseDir = dirname($vendorDir);
 
 return array(
     'Zotlabs\\' => array($baseDir . '/Zotlabs'),
-    'Test\\Markdownify\\' => array($vendorDir . '/pixel418/markdownify/test'),
     'Sabre\\Xml\\' => array($vendorDir . '/sabre/xml/lib'),
     'Sabre\\VObject\\' => array($vendorDir . '/sabre/vobject/lib'),
     'Sabre\\Uri\\' => array($vendorDir . '/sabre/uri/lib'),
@@ -18,6 +17,6 @@ return array(
     'Sabre\\CardDAV\\' => array($vendorDir . '/sabre/dav/lib/CardDAV'),
     'Sabre\\CalDAV\\' => array($vendorDir . '/sabre/dav/lib/CalDAV'),
     'Psr\\Log\\' => array($vendorDir . '/psr/log/Psr/Log'),
-    'Markdownify\\' => array($vendorDir . '/pixel418/markdownify/src'),
+    'League\\HTMLToMarkdown\\' => array($vendorDir . '/league/html-to-markdown/src'),
     'Hubzilla\\' => array($baseDir . '/include'),
 );
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index 53b9b20c3..0f01a275d 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -22,10 +22,6 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         array (
             'Zotlabs\\' => 8,
         ),
-        'T' => 
-        array (
-            'Test\\Markdownify\\' => 17,
-        ),
         'S' => 
         array (
             'Sabre\\Xml\\' => 10,
@@ -42,9 +38,9 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         array (
             'Psr\\Log\\' => 8,
         ),
-        'M' => 
+        'L' => 
         array (
-            'Markdownify\\' => 12,
+            'League\\HTMLToMarkdown\\' => 22,
         ),
         'H' => 
         array (
@@ -57,10 +53,6 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         array (
             0 => __DIR__ . '/../..' . '/Zotlabs',
         ),
-        'Test\\Markdownify\\' => 
-        array (
-            0 => __DIR__ . '/..' . '/pixel418/markdownify/test',
-        ),
         'Sabre\\Xml\\' => 
         array (
             0 => __DIR__ . '/..' . '/sabre/xml/lib',
@@ -101,9 +93,9 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         array (
             0 => __DIR__ . '/..' . '/psr/log/Psr/Log',
         ),
-        'Markdownify\\' => 
+        'League\\HTMLToMarkdown\\' => 
         array (
-            0 => __DIR__ . '/..' . '/pixel418/markdownify/src',
+            0 => __DIR__ . '/..' . '/league/html-to-markdown/src',
         ),
         'Hubzilla\\' => 
         array (
@@ -378,9 +370,29 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         'HTMLPurifier_VarParser_Native' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier/VarParser/Native.php',
         'HTMLPurifier_Zipper' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier/Zipper.php',
         'Hubzilla\\Import\\Import' => __DIR__ . '/../..' . '/include/Import/Importer.php',
-        'Markdownify\\Converter' => __DIR__ . '/..' . '/pixel418/markdownify/src/Converter.php',
-        'Markdownify\\ConverterExtra' => __DIR__ . '/..' . '/pixel418/markdownify/src/ConverterExtra.php',
-        'Markdownify\\Parser' => __DIR__ . '/..' . '/pixel418/markdownify/src/Parser.php',
+        'League\\HTMLToMarkdown\\Configuration' => __DIR__ . '/..' . '/league/html-to-markdown/src/Configuration.php',
+        'League\\HTMLToMarkdown\\ConfigurationAwareInterface' => __DIR__ . '/..' . '/league/html-to-markdown/src/ConfigurationAwareInterface.php',
+        'League\\HTMLToMarkdown\\Converter\\BlockquoteConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/BlockquoteConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\CodeConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/CodeConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\CommentConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/CommentConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\ConverterInterface' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/ConverterInterface.php',
+        'League\\HTMLToMarkdown\\Converter\\DefaultConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/DefaultConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\DivConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/DivConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\EmphasisConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/EmphasisConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\HardBreakConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/HardBreakConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\HeaderConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/HeaderConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\HorizontalRuleConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/HorizontalRuleConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\ImageConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/ImageConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\LinkConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/LinkConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\ListBlockConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/ListBlockConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\ListItemConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/ListItemConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\ParagraphConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/ParagraphConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\PreformattedConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/PreformattedConverter.php',
+        'League\\HTMLToMarkdown\\Converter\\TextConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/Converter/TextConverter.php',
+        'League\\HTMLToMarkdown\\Element' => __DIR__ . '/..' . '/league/html-to-markdown/src/Element.php',
+        'League\\HTMLToMarkdown\\ElementInterface' => __DIR__ . '/..' . '/league/html-to-markdown/src/ElementInterface.php',
+        'League\\HTMLToMarkdown\\Environment' => __DIR__ . '/..' . '/league/html-to-markdown/src/Environment.php',
+        'League\\HTMLToMarkdown\\HtmlConverter' => __DIR__ . '/..' . '/league/html-to-markdown/src/HtmlConverter.php',
         'Michelf\\Markdown' => __DIR__ . '/..' . '/michelf/php-markdown/Michelf/Markdown.php',
         'Michelf\\MarkdownExtra' => __DIR__ . '/..' . '/michelf/php-markdown/Michelf/MarkdownExtra.php',
         'Michelf\\MarkdownInterface' => __DIR__ . '/..' . '/michelf/php-markdown/Michelf/MarkdownInterface.php',
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
index e51d754d8..c416061ff 100644
--- a/vendor/composer/installed.json
+++ b/vendor/composer/installed.json
@@ -435,64 +435,6 @@
         ]
     },
     {
-        "name": "pixel418/markdownify",
-        "version": "v2.2.1",
-        "version_normalized": "2.2.1.0",
-        "source": {
-            "type": "git",
-            "url": "https://github.com/Elephant418/Markdownify.git",
-            "reference": "0160677f04c784550dd10fd72fdf3994967db848"
-        },
-        "dist": {
-            "type": "zip",
-            "url": "https://api.github.com/repos/Elephant418/Markdownify/zipball/0160677f04c784550dd10fd72fdf3994967db848",
-            "reference": "0160677f04c784550dd10fd72fdf3994967db848",
-            "shasum": ""
-        },
-        "require": {
-            "php": ">=5.3.0"
-        },
-        "require-dev": {
-            "phpunit/phpunit": "^4.8"
-        },
-        "time": "2016-09-21T13:01:43+00:00",
-        "type": "lib",
-        "installation-source": "dist",
-        "autoload": {
-            "psr-4": {
-                "Markdownify\\": "src",
-                "Test\\Markdownify\\": "test"
-            }
-        },
-        "notification-url": "https://packagist.org/downloads/",
-        "license": [
-            "LGPL"
-        ],
-        "authors": [
-            {
-                "name": "Peter Kruithof",
-                "email": "pkruithof@gmail.com",
-                "homepage": "http://pkruithof.tumblr.com/"
-            },
-            {
-                "name": "Milian Wolff",
-                "email": "mail@milianw.de",
-                "homepage": "http://milianw.de"
-            },
-            {
-                "name": "Thomas Zilliox",
-                "email": "hello@tzi.fr",
-                "homepage": "http://tzi.fr"
-            }
-        ],
-        "description": "The HTML to Markdown converter for PHP ",
-        "homepage": "https://github.com/elephant418/Markdownify",
-        "keywords": [
-            "markdown",
-            "markdownify"
-        ]
-    },
-    {
         "name": "bshaffer/oauth2-server-php",
         "version": "v1.9.0",
         "version_normalized": "1.9.0.0",
@@ -748,5 +690,71 @@
             "framework",
             "iCalendar"
         ]
+    },
+    {
+        "name": "league/html-to-markdown",
+        "version": "4.4.1",
+        "version_normalized": "4.4.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/thephpleague/html-to-markdown.git",
+            "reference": "82ea375b5b2b1da1da222644c0565c695bf88186"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/thephpleague/html-to-markdown/zipball/82ea375b5b2b1da1da222644c0565c695bf88186",
+            "reference": "82ea375b5b2b1da1da222644c0565c695bf88186",
+            "shasum": ""
+        },
+        "require": {
+            "ext-dom": "*",
+            "ext-xml": "*",
+            "php": ">=5.3.3"
+        },
+        "require-dev": {
+            "mikehaertl/php-shellcommand": "~1.1.0",
+            "phpunit/phpunit": "4.*",
+            "scrutinizer/ocular": "~1.1"
+        },
+        "time": "2017-03-16T00:45:59+00:00",
+        "bin": [
+            "bin/html-to-markdown"
+        ],
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "4.5-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "League\\HTMLToMarkdown\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Colin O'Dell",
+                "email": "colinodell@gmail.com",
+                "homepage": "http://www.colinodell.com",
+                "role": "Lead Developer"
+            },
+            {
+                "name": "Nick Cernis",
+                "email": "nick@cern.is",
+                "homepage": "http://modernnerd.net",
+                "role": "Original Author"
+            }
+        ],
+        "description": "An HTML-to-markdown conversion helper for PHP",
+        "homepage": "https://github.com/thephpleague/html-to-markdown",
+        "keywords": [
+            "html",
+            "markdown"
+        ]
     }
 ]
diff --git a/vendor/league/html-to-markdown/CHANGELOG.md b/vendor/league/html-to-markdown/CHANGELOG.md
new file mode 100644
index 000000000..067864412
--- /dev/null
+++ b/vendor/league/html-to-markdown/CHANGELOG.md
@@ -0,0 +1,214 @@
+# Change Log
+All notable changes to this project will be documented in this file.
+Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
+
+## [Unreleased][unreleased]
+
+## [4.4.1]
+
+### Fixed
+ - Fixed autolinking of invalid URLs (#129)
+
+## [4.4.0]
+
+### Added
+ - Added `hard_break` configuration option (#112, #115)
+ - The `HtmlConverter` can now be instantiated with an `Environment` (#118)
+
+### Fixed
+ - Fixed handling of paragraphs in list item elements (#47, #110)
+ - Fixed phantom spaces when newlines follow `br` elements (#116, #117)
+ - Fixed link converter not sanitizing inner spaces properly (#119, #120)
+
+## [4.3.1]
+### Changed
+ - Revised the sanitization implementation (#109)
+
+### Fixed
+ - Fixed tag-like content not being escaped (#67, #109)
+ - Fixed thematic break-like content not being escaped (#65, #109)
+ - Fixed codefence-like content not being escaped (#64, #109)
+
+## [4.3.0]
+### Added
+ - Added full support for PHP 7.0 and 7.1
+
+### Changed
+ - Changed `<pre>` and `<pre><code>` conversions to use backticks instead of indendation (#102)
+
+### Fixed
+ - Fixed issue where specified code language was not preserved (#70, #102)
+ - Fixed issue where `<code>` tags nested in `<pre>` was not converted properly (#70, #102)
+ - Fixed header-like content not being escaped (#76, #105)
+ - Fixed blockquote-like content not being escaped (#77, #103)
+ - Fixed ordered list-like content not being escaped (#73, #106)
+ - Fixed unordered list-like content not being escaped (#71, #107)
+
+## [4.2.2]
+### Fixed
+ - Fixed sanitization bug which sometimes removes desired content (#63, #101)
+
+## [4.2.1]
+### Fixed
+ - Fixed path to autoload.php when used as a library (#98)
+ - Fixed edge case for tags containing only whitespace (#99)
+
+### Removed
+ - Removed double HTML entity decoding, as this is not desireable (#60)
+
+## [4.2.0]
+
+### Added
+ - Added the ability to invoke HtmlConverter objects as functions (#85)
+
+### Fixed
+ - Fixed improper handling of nested list items (#19 and #84)
+ - Fixed preceeding or trailing spaces within emphasis tags (#83)
+
+## [4.1.1]
+
+### Fixed
+ - Fixed conversion of empty paragraphs (#78)
+ - Fixed `preg_replace` so it wouldn't break UTF-8 characters (#79)
+
+## [4.1.0]
+
+### Added
+ - Added `bin/html-to-markdown` script
+
+### Changed
+ - Changed default italic character to `_` (#58)
+
+## [4.0.1]
+
+### Fixed
+ - Added escaping to avoid * and _ in a text being rendered as emphasis (#48)
+
+### Removed
+ - Removed the demo (#51)
+ - `.styleci.yml` and `CONTRIBUTING.md` are no longer included in distributions (#50)
+
+## [4.0.0]
+
+This release changes the visibility of several methods/properties. #42 and #43 brought to light that some visiblities were
+not ideally set, so this releases fixes that. Moving forwards this should reduce the chance of introducing BC-breaking changes.
+
+### Added
+ - Added new `HtmlConverter::getEnvironment()` method to expose the `Environment` (#42, #43)
+
+### Changed
+ - Changed `Environment::addConverter()` from `protected` to `public`, enabling custom converters to be added (#42, #43)
+ - Changed `HtmlConverter::createDOMDocument()` from `protected` to `private`
+ - Changed `Element::nextCached` from `protected` to `private`
+ - Made the `Environment` class `final`
+
+## [3.1.1]
+### Fixed
+ - Empty HTML strings now result in empty Markdown documents (#40, #41)
+
+## [3.1.0]
+### Added
+ - Added new `equals` method to `Element` to check for equality
+
+### Changes
+ - Use Linux line endings consistently instead of plaform-specific line endings (#36)
+
+### Fixed
+ - Cleaned up code style
+
+## [3.0.0]
+### Changed
+ - Changed namespace to `League\HTMLToMarkdown`
+ - Changed packagist name to `league/html-to-markdown`
+ - Re-organized code into several separate classes
+ - `<a>` tags with identical href and inner text are now rendered using angular bracket syntax (#31)
+ - `<div>` elements are now treated as block-level elements (#33)
+
+## [2.2.2]
+### Added
+ - Added support for PHP 5.6 and HHVM
+ - Enabled testing against PHP 7 nightlies
+ - Added this CHANGELOG.md
+
+### Fixed
+ - Fixed whitespace preservation between inline elements (#9 and #10)
+
+## [2.2.1]
+### Fixed
+ - Preserve placeholder links (#22)
+
+## [2.2.0]
+### Added
+ - Added CircleCI config
+
+### Changed
+ - `<pre>` blocks are now treated as code elements
+
+### Removed
+ - Dropped support for PHP 5.2
+ - Removed incorrect README comment regarding `#text` nodes (#17)
+
+## [2.1.2]
+### Added
+ - Added the ability to blacklist/remove specific node types (#11)
+
+### Changed
+ - Line breaks are now placed after divs instead of before them
+ - Newlines inside of link texts are now removed
+ - Updated the minimum PHPUnit version to 4.*
+
+## [2.1.1]
+### Added
+ - Added options to customize emphasis characters
+
+## [2.1.0]
+### Added
+ - Added option to strip HTML tags without Markdown equivalents
+ - Added `convert()` method for converter reuse
+ - Added ability to set options after instance construction
+ - Documented the required PHP extensions (#4)
+
+### Changed
+ - ATX style now used for h1 and h2 tags inside blockquotes
+
+### Fixed
+ - Newlines inside blockquotes are now started with a bracket
+ - Fixed some incorrect docblocks
+ - `__toString()` now returns an empty string if input is empty
+ - Convert head tag if body tag is empty (#7)
+ - Preserve special characters inside tags without md equivalents (#6)
+
+
+## [2.0.1]
+### Fixed
+ - Fixed first line indentation for multi-line code blocks
+ - Fixed consecutive anchors get separating spaces stripped (#3)
+
+## [2.0.0]
+### Added
+ - Initial release
+
+[unreleased]: https://github.com/thephpleague/html-to-markdown/compare/4.4.1...master
+[4.4.1]: https://github.com/thephpleague/html-to-markdown/compare/4.4.0...4.4.1
+[4.4.0]: https://github.com/thephpleague/html-to-markdown/compare/4.3.1...4.4.0
+[4.3.1]: https://github.com/thephpleague/html-to-markdown/compare/4.3.0...4.3.1
+[4.3.0]: https://github.com/thephpleague/html-to-markdown/compare/4.2.2...4.3.0
+[4.2.2]: https://github.com/thephpleague/html-to-markdown/compare/4.2.1...4.2.2
+[4.2.1]: https://github.com/thephpleague/html-to-markdown/compare/4.2.0...4.2.1
+[4.2.0]: https://github.com/thephpleague/html-to-markdown/compare/4.1.1...4.2.0
+[4.1.1]: https://github.com/thephpleague/html-to-markdown/compare/4.1.0...4.1.1
+[4.1.0]: https://github.com/thephpleague/html-to-markdown/compare/4.0.1...4.1.0
+[4.0.1]: https://github.com/thephpleague/html-to-markdown/compare/4.0.0...4.0.1
+[4.0.0]: https://github.com/thephpleague/html-to-markdown/compare/3.1.1...4.0.0
+[3.1.1]: https://github.com/thephpleague/html-to-markdown/compare/3.1.0...3.1.1
+[3.1.0]: https://github.com/thephpleague/html-to-markdown/compare/3.0.0...3.1.0
+[3.0.0]: https://github.com/thephpleague/html-to-markdown/compare/2.2.2...3.0.0
+[2.2.2]: https://github.com/thephpleague/html-to-markdown/compare/2.2.1...2.2.2
+[2.2.1]: https://github.com/thephpleague/html-to-markdown/compare/2.2.0...2.2.1
+[2.2.0]: https://github.com/thephpleague/html-to-markdown/compare/2.1.2...2.2.0
+[2.1.2]: https://github.com/thephpleague/html-to-markdown/compare/2.1.1...2.1.2
+[2.1.1]: https://github.com/thephpleague/html-to-markdown/compare/2.1.0...2.1.1
+[2.1.0]: https://github.com/thephpleague/html-to-markdown/compare/2.0.1...2.1.0
+[2.0.1]: https://github.com/thephpleague/html-to-markdown/compare/2.0.0...2.0.1
+[2.0.0]: https://github.com/thephpleague/html-to-markdown/compare/775f91e...2.0.0
+
diff --git a/vendor/league/html-to-markdown/CONDUCT.md b/vendor/league/html-to-markdown/CONDUCT.md
new file mode 100644
index 000000000..01b8644f1
--- /dev/null
+++ b/vendor/league/html-to-markdown/CONDUCT.md
@@ -0,0 +1,22 @@
+# Contributor Code of Conduct
+
+As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free experience for everyone, regardless of level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, ethnicity, age, religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery
+* Personal attacks
+* Trolling or insulting/derogatory comments
+* Public or private harassment
+* Publishing other's private information, such as physical or electronic addresses, without explicit permission
+* Other unethical or unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct. By adopting this Code of Conduct, project maintainers commit themselves to fairly and consistently applying these principles to every aspect of managing this project. Project maintainers who do not follow or enforce the Code of Conduct may be permanently removed from the project team.
+
+This code of conduct applies both within project spaces and in public spaces when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by opening an issue or contacting one or more of the project maintainers.
+
+This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.2.0, available at [http://contributor-covenant.org/version/1/2/0/](http://contributor-covenant.org/version/1/2/0/)
diff --git a/vendor/league/html-to-markdown/LICENSE b/vendor/league/html-to-markdown/LICENSE
new file mode 100644
index 000000000..6c04a59dd
--- /dev/null
+++ b/vendor/league/html-to-markdown/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Colin O'Dell
+
+Originally created by Nick Cernis
+
+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.
\ No newline at end of file
diff --git a/vendor/league/html-to-markdown/README.md b/vendor/league/html-to-markdown/README.md
new file mode 100644
index 000000000..8d75649d6
--- /dev/null
+++ b/vendor/league/html-to-markdown/README.md
@@ -0,0 +1,196 @@
+HTML To Markdown for PHP
+========================
+
+[![Join the chat at https://gitter.im/thephpleague/html-to-markdown](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/thephpleague/html-to-markdown?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+[![Latest Version](https://img.shields.io/packagist/v/league/html-to-markdown.svg?style=flat-square)](https://packagist.org/packages/league/html-to-markdown)
+[![Software License](http://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE)
+[![Build Status](https://img.shields.io/travis/thephpleague/html-to-markdown/master.svg?style=flat-square)](https://travis-ci.org/thephpleague/html-to-markdown)
+[![Coverage Status](https://img.shields.io/scrutinizer/coverage/g/thephpleague/html-to-markdown.svg?style=flat-square)](https://scrutinizer-ci.com/g/thephpleague/html-to-markdown/code-structure)
+[![Quality Score](https://img.shields.io/scrutinizer/g/thephpleague/html-to-markdown.svg?style=flat-square)](https://scrutinizer-ci.com/g/thephpleague/html-to-markdown)
+[![Total Downloads](https://img.shields.io/packagist/dt/league/html-to-markdown.svg?style=flat-square)](https://packagist.org/packages/league/html-to-markdown)
+
+Library which converts HTML to [Markdown](http://daringfireball.net/projects/markdown/) for your sanity and convenience.
+
+
+**Requires**: PHP 5.3+
+
+**Lead Developer**: [@colinodell](http://twitter.com/colinodell)
+
+**Original Author**: [@nickcernis](http://twitter.com/nickcernis)
+
+
+### Why convert HTML to Markdown?
+
+*"What alchemy is this?"* you mutter. *"I can see why you'd convert [Markdown to HTML](https://github.com/thephpleague/commonmark),"* you continue, already labouring the question somewhat, *"but why go the other way?"*
+
+Typically you would convert HTML to Markdown if:
+
+1. You have an existing HTML document that needs to be edited by people with good taste.
+2. You want to store new content in HTML format but edit it as Markdown.
+3. You want to convert HTML email to plain text email. 
+4. You know a guy who's been converting HTML to Markdown for years, and now he can speak Elvish. You'd quite like to be able to speak Elvish.
+5. You just really like Markdown.
+
+### How to use it
+
+Require the library by issuing this command:
+
+```bash
+composer require league/html-to-markdown
+```
+
+Add `require 'vendor/autoload.php';` to the top of your script.
+
+Next, create a new HtmlConverter instance, passing in your valid HTML code to its `convert()` function:
+
+```php
+use League\HTMLToMarkdown\HtmlConverter;
+
+$converter = new HtmlConverter();
+
+$html = "<h3>Quick, to the Batpoles!</h3>";
+$markdown = $converter->convert($html);
+```
+
+The `$markdown` variable now contains the Markdown version of your HTML as a string:
+
+```php
+echo $markdown; // ==> ### Quick, to the Batpoles!
+```
+
+The included `demo` directory contains an HTML->Markdown conversion form to try out.
+
+### Conversion options
+
+By default, HTML To Markdown preserves HTML tags without Markdown equivalents, like `<span>` and `<div>`.
+
+To strip HTML tags that don't have a Markdown equivalent while preserving the content inside them, set `strip_tags` to true, like this:
+
+```php
+$converter = new HtmlConverter(array('strip_tags' => true));
+
+$html = '<span>Turnips!</span>';
+$markdown = $converter->convert($html); // $markdown now contains "Turnips!"
+```
+
+Or more explicitly, like this:
+
+```php
+$converter = new HtmlConverter();
+$converter->getConfig()->setOption('strip_tags', true);
+
+$html = '<span>Turnips!</span>';
+$markdown = $converter->convert($html); // $markdown now contains "Turnips!"
+```
+
+Note that only the tags themselves are stripped, not the content they hold.
+
+To strip tags and their content, pass a space-separated list of tags in `remove_nodes`, like this:
+
+```php
+$converter = new HtmlConverter(array('remove_nodes' => 'span div'));
+
+$html = '<span>Turnips!</span><div>Monkeys!</div>';
+$markdown = $converter->convert($html); // $markdown now contains ""
+```
+
+### Style options
+
+Bold and italic tags are converted using the asterisk syntax by default. Change this to the underlined syntax using the `bold_style` and `italic_style` options.
+
+```php
+$converter = new HtmlConverter();
+$converter->getConfig()->setOption('italic_style', '_');
+$converter->getConfig()->setOption('bold_style', '__');
+
+$html = '<em>Italic</em> and a <strong>bold</strong>';
+$markdown = $converter->convert($html); // $markdown now contains "_Italic_ and a __bold__"
+```
+
+### Line break options
+
+By default, `br` tags are converted to two spaces followed by a newline character as per [traditional Markdown](https://daringfireball.net/projects/markdown/syntax#p). Set `hard_break` to `true` to omit the two spaces, as per GitHub Flavored Markdown (GFM).
+
+```php
+$converter = new HtmlConverter();
+$html = '<p>test<br>line break</p>';
+
+$converter->getConfig()->setOption('hard_break', true);
+$markdown = $converter->convert($html); // $markdown now contains "test\nline break"
+
+$converter->getConfig()->setOption('hard_break', false); // default
+$markdown = $converter->convert($html); // $markdown now contains "test  \nline break"
+```
+
+### Passing custom Environment object
+
+You can pass current `Environment` object to customize i.e. which converters should be used.
+
+```php
+$environment = new Environment(array(
+    // your configuration here
+));
+$environment->addConverter(new HeaderConverter()); // optionally - add converter manually
+
+$converter = new HtmlConverter($environment);
+
+$html = '<h3>Header</h3>
+<img src="" />
+';
+$markdown = $converter->convert($html); // $markdown now contains "### Header" and "<img src="" />"
+```
+
+### Limitations
+
+- Markdown Extra, MultiMarkdown and other variants aren't supported – just Markdown.
+
+### Known issues
+
+- Nested lists and lists containing multiple paragraphs aren't converted correctly.
+- Lists inside blockquotes aren't converted correctly.
+- Any reported [open issues here](https://github.com/thephpleague/html-to-markdown/issues?state=open).
+
+[Report your issue or request a feature here.](https://github.com/thephpleague/html-to-markdown/issues/new) Issues with patches or failing tests are especially welcome.
+
+### Style notes
+
+- Setext (underlined) headers are the default for H1 and H2. If you prefer the ATX style for H1 and H2 (# Header 1 and ## Header 2), set `header_style` to 'atx' in the options array when you instantiate the object:
+
+    `$converter = new HtmlConverter(array('header_style'=>'atx'));`
+
+     Headers of H3 priority and lower always use atx style.
+
+- Links and images are referenced inline. Footnote references (where image src and anchor href attributes are listed in the footnotes) are not used. 
+- Blockquotes aren't line wrapped – it makes the converted Markdown easier to edit.
+
+### Dependencies
+
+HTML To Markdown requires PHP's [xml](http://www.php.net/manual/en/xml.installation.php), [lib-xml](http://www.php.net/manual/en/libxml.installation.php), and [dom](http://www.php.net/manual/en/dom.installation.php) extensions, all of which are enabled by default on most distributions.
+
+Errors such as "Fatal error: Class 'DOMDocument' not found" on distributions such as CentOS that disable PHP's xml extension can be resolved by installing php-xml.
+
+### Contributors
+
+Many thanks to all [contributors](https://github.com/thephpleague/html-to-markdown/graphs/contributors) so far. Further improvements and feature suggestions are very welcome.
+
+### How it works
+
+HTML To Markdown creates a DOMDocument from the supplied HTML, walks through the tree, and converts each node to a text node containing the equivalent markdown, starting from the most deeply nested node and working inwards towards the root node.
+
+### To-do
+
+- Support for nested lists and lists inside blockquotes.
+- Offer an option to preserve tags as HTML if they contain attributes that can't be represented with Markdown (e.g. `style`).
+
+### Trying to convert Markdown to HTML?
+
+Use one of these great libraries:
+
+ - [league/commonmark](https://github.com/thephpleague/commonmark) (recommended)
+ - [cebe/markdown](https://github.com/cebe/markdown)
+ - [PHP Markdown](https://michelf.ca/projects/php-markdown/)
+ - [Parsedown](https://github.com/erusev/parsedown)
+
+No guarantees about the Elvish, though.
+
diff --git a/vendor/league/html-to-markdown/bin/html-to-markdown b/vendor/league/html-to-markdown/bin/html-to-markdown
new file mode 100755
index 000000000..2815a7cef
--- /dev/null
+++ b/vendor/league/html-to-markdown/bin/html-to-markdown
@@ -0,0 +1,108 @@
+#!/usr/bin/env php
+<?php
+
+requireAutoloader();
+
+ini_set('display_errors', 'stderr');
+
+foreach ($argv as $i => $arg) {
+    if ($i === 0) {
+        continue;
+    }
+
+    if (substr($arg, 0, 1) === '-') {
+        switch ($arg) {
+            case '-h':
+            case '--help':
+                echo getHelpText();
+                exit(0);
+            default:
+                fail('Unknown option: ' . $arg);
+        }
+    } else {
+        $src = $argv[1];
+    }
+}
+
+if (isset($src)) {
+    if (!file_exists($src)) {
+        fail('File not found: ' . $src);
+    }
+
+    $html = file_get_contents($src);
+} else {
+    $stdin = fopen('php://stdin', 'r');
+    stream_set_blocking($stdin, false);
+    $html = stream_get_contents($stdin);
+    fclose($stdin);
+
+    if (empty($html)) {
+        fail(getHelpText());
+    }
+}
+
+
+$converter = new League\HTMLToMarkdown\HtmlConverter();
+echo $converter->convert($html);
+
+/**
+ * Get help and usage info
+ *
+ * @return string
+ */
+function getHelpText()
+{
+    return <<<HELP
+HTML To Markdown
+
+Usage: html-to-markdown [OPTIONS] [FILE]
+
+    -h, --help  Shows help and usage information
+
+    If no file is given, input will be read from STDIN
+
+Examples:
+
+    Converting a file named document.html:
+
+        html-to-markdown document.html
+
+    Converting a file and saving its output:
+
+        html-to-markdown document.html > output.md
+
+    Converting from STDIN:
+
+        echo -e '<h1>Hello World!</h1>' | html-to-markdown
+
+    Converting from STDIN and saving the output:
+
+        echo -e '<h1>Hello World!</h1>' | html-to-markdown > output.md
+
+HELP;
+}
+
+/**
+ * @param string $message Error message
+ */
+function fail($message)
+{
+    fwrite(STDERR, $message . "\n");
+    exit(1);
+}
+
+function requireAutoloader()
+{
+    $autoloadPaths = array(
+        // Local package usage
+        __DIR__ . '/../vendor/autoload.php',
+        // Package was included as a library
+        __DIR__ . '/../../../autoload.php',
+    );
+    foreach ($autoloadPaths as $path) {
+        if (file_exists($path)) {
+            require_once $path;
+            break;
+        }
+    }
+}
diff --git a/vendor/league/html-to-markdown/composer.json b/vendor/league/html-to-markdown/composer.json
new file mode 100644
index 000000000..58764bcb5
--- /dev/null
+++ b/vendor/league/html-to-markdown/composer.json
@@ -0,0 +1,48 @@
+{
+    "name": "league/html-to-markdown",
+    "type": "library",
+    "description": "An HTML-to-markdown conversion helper for PHP",
+    "keywords": ["markdown", "html"],
+    "homepage": "https://github.com/thephpleague/html-to-markdown",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Colin O'Dell",
+            "email": "colinodell@gmail.com",
+            "homepage": "http://www.colinodell.com",
+            "role": "Lead Developer"
+        },
+        {
+            "name": "Nick Cernis",
+            "email": "nick@cern.is",
+            "homepage": "http://modernnerd.net",
+            "role": "Original Author"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "League\\HTMLToMarkdown\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "League\\HTMLToMarkdown\\Test\\": "tests"
+        }
+    },
+    "require": {
+        "php": ">=5.3.3",
+        "ext-dom": "*",
+        "ext-xml": "*"
+    },
+    "require-dev": {
+        "mikehaertl/php-shellcommand": "~1.1.0",
+        "phpunit/phpunit": "4.*",
+        "scrutinizer/ocular": "~1.1"
+    },
+    "bin": ["bin/html-to-markdown"],
+    "extra": {
+        "branch-alias": {
+            "dev-master": "4.5-dev"
+        }
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Configuration.php b/vendor/league/html-to-markdown/src/Configuration.php
new file mode 100644
index 000000000..2943383aa
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Configuration.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace League\HTMLToMarkdown;
+
+class Configuration
+{
+    protected $config;
+
+    /**
+     * @param array $config
+     */
+    public function __construct(array $config = array())
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param array $config
+     */
+    public function merge(array $config = array())
+    {
+        $this->config = array_replace_recursive($this->config, $config);
+    }
+
+    /**
+     * @param array $config
+     */
+    public function replace(array $config = array())
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param string $key
+     * @param mixed  $value
+     */
+    public function setOption($key, $value)
+    {
+        $this->config[$key] = $value;
+    }
+
+    /**
+     * @param string|null $key
+     * @param mixed|null  $default
+     *
+     * @return mixed|null
+     */
+    public function getOption($key = null, $default = null)
+    {
+        if ($key === null) {
+            return $this->config;
+        }
+
+        if (!isset($this->config[$key])) {
+            return $default;
+        }
+
+        return $this->config[$key];
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/ConfigurationAwareInterface.php b/vendor/league/html-to-markdown/src/ConfigurationAwareInterface.php
new file mode 100644
index 000000000..8aca530be
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/ConfigurationAwareInterface.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace League\HTMLToMarkdown;
+
+interface ConfigurationAwareInterface
+{
+    /**
+     * @param Configuration $config
+     */
+    public function setConfig(Configuration $config);
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/BlockquoteConverter.php b/vendor/league/html-to-markdown/src/Converter/BlockquoteConverter.php
new file mode 100644
index 000000000..eb2d09d17
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/BlockquoteConverter.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class BlockquoteConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        // Contents should have already been converted to Markdown by this point,
+        // so we just need to add '>' symbols to each line.
+
+        $markdown = '';
+
+        $quote_content = trim($element->getValue());
+
+        $lines = preg_split('/\r\n|\r|\n/', $quote_content);
+
+        $total_lines = count($lines);
+
+        foreach ($lines as $i => $line) {
+            $markdown .= '> ' . $line . "\n";
+            if ($i + 1 === $total_lines) {
+                $markdown .= "\n";
+            }
+        }
+
+        return $markdown;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('blockquote');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/CodeConverter.php b/vendor/league/html-to-markdown/src/Converter/CodeConverter.php
new file mode 100644
index 000000000..c8ec2c005
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/CodeConverter.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class CodeConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $language = null;
+
+        // Checking for language class on the code block
+        $classes = $element->getAttribute('class');
+
+        if ($classes) {
+            // Since tags can have more than one class, we need to find the one that starts with 'language-'
+            $classes = explode(' ', $classes);
+            foreach ($classes as $class) {
+                if (strpos($class, 'language-') !== false) {
+                    // Found one, save it as the selected language and stop looping over the classes.
+                    // The space after the language avoids gluing the actual code with the language tag
+                    $language = str_replace('language-', '', $class) . ' ';
+                    break;
+                }
+            }
+        }
+
+        $markdown = '';
+        $code = html_entity_decode($element->getChildrenAsString());
+
+        // In order to remove the code tags we need to search for them and, in the case of the opening tag
+        // use a regular expression to find the tag and the other attributes it might have
+        $code = preg_replace('/<code\b[^>]*>/', '', $code);
+        $code = str_replace('</code>', '', $code);
+
+        // Checking if the code has multiple lines
+        $lines = preg_split('/\r\n|\r|\n/', $code);
+        if (count($lines) > 1) {
+            // Multiple lines detected, adding three backticks and newlines
+            $markdown .= '```' . $language . "\n" . $code . "\n" . '```';
+        } else {
+            // One line of code, wrapping it on one backtick.
+            $markdown .= '`' . $language . $code . '`';
+        }
+
+        return $markdown;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('code');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/CommentConverter.php b/vendor/league/html-to-markdown/src/Converter/CommentConverter.php
new file mode 100644
index 000000000..55038b254
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/CommentConverter.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class CommentConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        return '';
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('#comment');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/ConverterInterface.php b/vendor/league/html-to-markdown/src/Converter/ConverterInterface.php
new file mode 100644
index 000000000..8530559a0
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/ConverterInterface.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+interface ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element);
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags();
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/DefaultConverter.php b/vendor/league/html-to-markdown/src/Converter/DefaultConverter.php
new file mode 100644
index 000000000..964a71093
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/DefaultConverter.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\Configuration;
+use League\HTMLToMarkdown\ConfigurationAwareInterface;
+use League\HTMLToMarkdown\ElementInterface;
+
+class DefaultConverter implements ConverterInterface, ConfigurationAwareInterface
+{
+    const DEFAULT_CONVERTER = '_default';
+
+    /**
+     * @var Configuration
+     */
+    protected $config;
+
+    /**
+     * @param Configuration $config
+     */
+    public function setConfig(Configuration $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        // If strip_tags is false (the default), preserve tags that don't have Markdown equivalents,
+        // such as <span> nodes on their own. C14N() canonicalizes the node to a string.
+        // See: http://www.php.net/manual/en/domnode.c14n.php
+        if ($this->config->getOption('strip_tags', false)) {
+            return $element->getValue();
+        }
+
+        return html_entity_decode($element->getChildrenAsString());
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array(self::DEFAULT_CONVERTER);
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/DivConverter.php b/vendor/league/html-to-markdown/src/Converter/DivConverter.php
new file mode 100644
index 000000000..656a0ba4d
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/DivConverter.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\Configuration;
+use League\HTMLToMarkdown\ConfigurationAwareInterface;
+use League\HTMLToMarkdown\ElementInterface;
+
+class DivConverter implements ConverterInterface, ConfigurationAwareInterface
+{
+    /**
+     * @var Configuration
+     */
+    protected $config;
+
+    /**
+     * @param Configuration $config
+     */
+    public function setConfig(Configuration $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        if ($this->config->getOption('strip_tags', false)) {
+            return $element->getValue() . "\n\n";
+        }
+
+        return html_entity_decode($element->getChildrenAsString());
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('div');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php b/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php
new file mode 100644
index 000000000..67250769b
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\Configuration;
+use League\HTMLToMarkdown\ConfigurationAwareInterface;
+use League\HTMLToMarkdown\ElementInterface;
+
+class EmphasisConverter implements ConverterInterface, ConfigurationAwareInterface
+{
+    /**
+     * @var Configuration
+     */
+    protected $config;
+
+    /**
+     * @param Configuration $config
+     */
+    public function setConfig(Configuration $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $tag = $element->getTagName();
+        $value = $element->getValue();
+
+        if (!trim($value)) {
+            return '';
+        }
+
+        if ($tag === 'i' || $tag === 'em') {
+            $style = $this->config->getOption('italic_style');
+        } else {
+            $style = $this->config->getOption('bold_style');
+        }
+
+        $prefix = ltrim($value) !== $value ? ' ' : '';
+        $suffix = rtrim($value) !== $value ? ' ' : '';
+
+        return $prefix . $style . trim($value) . $style . $suffix;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('em', 'i', 'strong', 'b');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/HardBreakConverter.php b/vendor/league/html-to-markdown/src/Converter/HardBreakConverter.php
new file mode 100644
index 000000000..37cd44e73
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/HardBreakConverter.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\Configuration;
+use League\HTMLToMarkdown\ConfigurationAwareInterface;
+use League\HTMLToMarkdown\ElementInterface;
+
+class HardBreakConverter implements ConverterInterface, ConfigurationAwareInterface
+{
+    /**
+     * @var Configuration
+     */
+    protected $config;
+
+    /**
+     * @param Configuration $config
+     */
+    public function setConfig(Configuration $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        return $this->config->getOption('hard_break') ? "\n" : "  \n";
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('br');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/HeaderConverter.php b/vendor/league/html-to-markdown/src/Converter/HeaderConverter.php
new file mode 100644
index 000000000..d117e7d36
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/HeaderConverter.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\Configuration;
+use League\HTMLToMarkdown\ConfigurationAwareInterface;
+use League\HTMLToMarkdown\ElementInterface;
+
+class HeaderConverter implements ConverterInterface, ConfigurationAwareInterface
+{
+    const STYLE_ATX = 'atx';
+    const STYLE_SETEXT = 'setext';
+
+    /**
+     * @var Configuration
+     */
+    protected $config;
+
+    /**
+     * @param Configuration $config
+     */
+    public function setConfig(Configuration $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $level = (int) substr($element->getTagName(), 1, 1);
+        $style = $this->config->getOption('header_style', self::STYLE_SETEXT);
+
+        if (($level === 1 || $level === 2) && !$element->isDescendantOf('blockquote') && $style === self::STYLE_SETEXT) {
+            return $this->createSetextHeader($level, $element->getValue());
+        }
+
+        return $this->createAtxHeader($level, $element->getValue());
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('h1', 'h2', 'h3', 'h4', 'h5', 'h6');
+    }
+
+    /**
+     * @param int    $level
+     * @param string $content
+     *
+     * @return string
+     */
+    private function createSetextHeader($level, $content)
+    {
+        $length = function_exists('mb_strlen') ? mb_strlen($content, 'utf-8') : strlen($content);
+        $underline = ($level === 1) ? '=' : '-';
+
+        return $content . "\n" . str_repeat($underline, $length) . "\n\n";
+    }
+
+    /**
+     * @param int    $level
+     * @param string $content
+     *
+     * @return string
+     */
+    private function createAtxHeader($level, $content)
+    {
+        $prefix = str_repeat('#', $level) . ' ';
+
+        return $prefix . $content . "\n\n";
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/HorizontalRuleConverter.php b/vendor/league/html-to-markdown/src/Converter/HorizontalRuleConverter.php
new file mode 100644
index 000000000..8f54f9397
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/HorizontalRuleConverter.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class HorizontalRuleConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        return "- - - - - -\n\n";
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('hr');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/ImageConverter.php b/vendor/league/html-to-markdown/src/Converter/ImageConverter.php
new file mode 100644
index 000000000..657c769c2
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/ImageConverter.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class ImageConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $src = $element->getAttribute('src');
+        $alt = $element->getAttribute('alt');
+        $title = $element->getAttribute('title');
+
+        if ($title !== '') {
+            // No newlines added. <img> should be in a block-level element.
+            return '![' . $alt . '](' . $src . ' "' . $title . '")';
+        }
+
+        return '![' . $alt . '](' . $src . ')';
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('img');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/LinkConverter.php b/vendor/league/html-to-markdown/src/Converter/LinkConverter.php
new file mode 100644
index 000000000..f0765f38b
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/LinkConverter.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class LinkConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $href = $element->getAttribute('href');
+        $title = $element->getAttribute('title');
+        $text = trim($element->getValue());
+
+        if ($title !== '') {
+            $markdown = '[' . $text . '](' . $href . ' "' . $title . '")';
+        } elseif ($href === $text && $this->isValidAutolink($href)) {
+            $markdown = '<' . $href . '>';
+        } else {
+            $markdown = '[' . $text . '](' . $href . ')';
+        }
+
+        if (!$href) {
+            $markdown = html_entity_decode($element->getChildrenAsString());
+        }
+
+        return $markdown;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('a');
+    }
+
+    /**
+     * @param string $href
+     *
+     * @return bool
+     */
+    private function isValidAutolink($href)
+    {
+        return preg_match('/^[A-Za-z][A-Za-z0-9.+-]{1,31}:[^<>\x00-\x20]*/i', $href) === 1;
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/ListBlockConverter.php b/vendor/league/html-to-markdown/src/Converter/ListBlockConverter.php
new file mode 100644
index 000000000..07a4c85a9
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/ListBlockConverter.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class ListBlockConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        return $element->getValue() . "\n";
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('ol', 'ul');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/ListItemConverter.php b/vendor/league/html-to-markdown/src/Converter/ListItemConverter.php
new file mode 100644
index 000000000..dafec077c
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/ListItemConverter.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class ListItemConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        // If parent is an ol, use numbers, otherwise, use dashes
+        $list_type = $element->getParent()->getTagName();
+
+        // Add spaces to start for nested list items
+        $level = $element->getListItemLevel($element);
+
+        $prefixForParagraph = str_repeat('  ', $level + 1);
+        $value = trim(implode("\n" . $prefixForParagraph, explode("\n", trim($element->getValue()))));
+
+        // If list item is the first in a nested list, add a newline before it
+        $prefix = '';
+        if ($level > 0 && $element->getSiblingPosition() === 1) {
+            $prefix = "\n";
+        }
+
+        if ($list_type === 'ul') {
+            return $prefix . '- ' . $value . "\n";
+        }
+
+        $number = $element->getSiblingPosition();
+
+        return $prefix . $number . '. ' . $value . "\n";
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('li');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/ParagraphConverter.php b/vendor/league/html-to-markdown/src/Converter/ParagraphConverter.php
new file mode 100644
index 000000000..cf852bfcf
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/ParagraphConverter.php
@@ -0,0 +1,124 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class ParagraphConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $value = $element->getValue();
+
+        $markdown = '';
+
+        $lines = preg_split('/\r\n|\r|\n/', $value);
+        foreach ($lines as $line) {
+            /*
+             * Some special characters need to be escaped based on the position that they appear
+             * The following function will deal with those special cases.
+             */
+            $markdown .= $this->escapeSpecialCharacters($line);
+            $markdown .= "\n";
+        }
+
+        return trim($markdown) !== '' ? rtrim($markdown) . "\n\n" : '';
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('p');
+    }
+
+    /**
+     * @param string $line
+     *
+     * @return string
+     */
+    private function escapeSpecialCharacters($line)
+    {
+        $line = $this->escapeFirstCharacters($line);
+        $line = $this->escapeOtherCharacters($line);
+        $line = $this->escapeOtherCharactersRegex($line);
+
+        return $line;
+    }
+
+    /**
+     * @param string $line
+     *
+     * @return string
+     */
+    private function escapeFirstCharacters($line)
+    {
+        $escapable = array(
+            '>',
+            '- ',
+            '+ ',
+            '--',
+            '~~~',
+            '---',
+            '- - -'
+        );
+
+        foreach ($escapable as $i) {
+            if (strpos(ltrim($line), $i) === 0) {
+                // Found a character that must be escaped, adding a backslash before
+                return '\\' . ltrim($line);
+            }
+        }
+
+        return $line;
+    }
+
+    /**
+     * @param string $line
+     *
+     * @return string
+     */
+    private function escapeOtherCharacters($line)
+    {
+        $escapable = array(
+            '<!--'
+        );
+
+        foreach ($escapable as $i) {
+            if (strpos($line, $i) !== false) {
+                // Found an escapable character, escaping it
+                $line = substr_replace($line, '\\', strpos($line, $i), 0);
+            }
+        }
+
+        return $line;
+    }
+
+    /**
+     * @param string $line
+     *
+     * @return string
+     */
+    private function escapeOtherCharactersRegex($line)
+    {
+        $regExs = array(
+            // Match numbers ending on ')' or '.' that are at the beginning of the line.
+            '/^[0-9]+(?=\)|\.)/'
+        );
+
+        foreach ($regExs as $i) {
+            if (preg_match($i, $line, $match)) {
+                // Matched an escapable character, adding a backslash on the string before the offending character
+                $line = substr_replace($line, '\\', strlen($match[0]), 0);
+            }
+        }
+
+        return $line;
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/PreformattedConverter.php b/vendor/league/html-to-markdown/src/Converter/PreformattedConverter.php
new file mode 100644
index 000000000..7a4ec3357
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/PreformattedConverter.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class PreformattedConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $markdown = '';
+
+        $pre_content = html_entity_decode($element->getChildrenAsString());
+        $pre_content = str_replace(array('<pre>', '</pre>'), '', $pre_content);
+
+        /*
+         * Checking for the code tag.
+         * Usually pre tags are used along with code tags. This conditional will check for already converted code tags,
+         * which use backticks, and if those backticks are at the beginning and at the end of the string it means
+         * there's no more information to convert.
+         */
+
+        $firstBacktick = strpos(trim($pre_content), '`');
+        $lastBacktick = strrpos(trim($pre_content), '`');
+        if ($firstBacktick === 0 && $lastBacktick === strlen(trim($pre_content)) - 1) {
+            return $pre_content;
+        }
+
+        // If the execution reaches this point it means it's just a pre tag, with no code tag nested
+
+        // Normalizing new lines
+        $pre_content = preg_replace('/\r\n|\r|\n/', PHP_EOL, $pre_content);
+
+        // Checking if the string has multiple lines
+        $lines = preg_split('/\r\n|\r|\n/', $pre_content);
+        if (count($lines) > 1) {
+            // Multiple lines detected, adding three backticks and newlines
+            $markdown .= '```' . "\n" . $pre_content . "\n" . '```';
+        } else {
+            // One line of code, wrapping it on one backtick.
+            $markdown .= '`' . $pre_content . '`';
+        }
+
+        return $markdown;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('pre');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Converter/TextConverter.php b/vendor/league/html-to-markdown/src/Converter/TextConverter.php
new file mode 100644
index 000000000..d6d91e16f
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Converter/TextConverter.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace League\HTMLToMarkdown\Converter;
+
+use League\HTMLToMarkdown\ElementInterface;
+
+class TextConverter implements ConverterInterface
+{
+    /**
+     * @param ElementInterface $element
+     *
+     * @return string
+     */
+    public function convert(ElementInterface $element)
+    {
+        $markdown = $element->getValue();
+
+        // Remove leftover \n at the beginning of the line
+        $markdown = ltrim($markdown, "\n");
+
+        // Replace sequences of invisible characters with spaces
+        $markdown = preg_replace('~\s+~u', ' ', $markdown);
+
+        // Escape the following characters: '*', '_', '[', ']' and '\'
+        $markdown = preg_replace('~([*_\\[\\]\\\\])~u', '\\\\$1', $markdown);
+
+        $markdown = preg_replace('~^#~u', '\\\\#', $markdown);
+
+        if ($markdown === ' ') {
+            $next = $element->getNext();
+            if (!$next || $next->isBlock()) {
+                $markdown = '';
+            }
+        }
+
+        return $markdown;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getSupportedTags()
+    {
+        return array('#text');
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/Element.php b/vendor/league/html-to-markdown/src/Element.php
new file mode 100644
index 000000000..e1e9d1a09
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Element.php
@@ -0,0 +1,257 @@
+<?php
+
+namespace League\HTMLToMarkdown;
+
+class Element implements ElementInterface
+{
+    /**
+     * @var \DOMNode
+     */
+    protected $node;
+
+    /**
+     * @var ElementInterface|null
+     */
+    private $nextCached;
+
+    public function __construct(\DOMNode $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isBlock()
+    {
+        switch ($this->getTagName()) {
+            case 'blockquote':
+            case 'body':
+            case 'code':
+            case 'div':
+            case 'h1':
+            case 'h2':
+            case 'h3':
+            case 'h4':
+            case 'h5':
+            case 'h6':
+            case 'hr':
+            case 'html':
+            case 'li':
+            case 'p':
+            case 'ol':
+            case 'ul':
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * @return bool
+     */
+    public function isText()
+    {
+        return $this->getTagName() === '#text';
+    }
+
+    /**
+     * @return bool
+     */
+    public function isWhitespace()
+    {
+        return $this->getTagName() === '#text' && trim($this->getValue()) === '';
+    }
+
+    /**
+     * @return string
+     */
+    public function getTagName()
+    {
+        return $this->node->nodeName;
+    }
+
+    /**
+     * @return string
+     */
+    public function getValue()
+    {
+        return $this->node->nodeValue;
+    }
+
+    /**
+     * @return ElementInterface|null
+     */
+    public function getParent()
+    {
+        return new static($this->node->parentNode) ?: null;
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasChildren()
+    {
+        return $this->node->hasChildNodes();
+    }
+
+    /**
+     * @return ElementInterface[]
+     */
+    public function getChildren()
+    {
+        $ret = array();
+        /** @var \DOMNode $node */
+        foreach ($this->node->childNodes as $node) {
+            $ret[] = new static($node);
+        }
+
+        return $ret;
+    }
+
+    /**
+     * @return ElementInterface|null
+     */
+    public function getNext()
+    {
+        if ($this->nextCached === null) {
+            $nextNode = $this->getNextNode($this->node);
+            if ($nextNode !== null) {
+                $this->nextCached = new static($nextNode);
+            }
+        }
+
+        return $this->nextCached;
+    }
+
+    /**
+     * @param \DomNode $node
+     * @param bool $checkChildren
+     *
+     * @return \DomNode|null
+     */
+    private function getNextNode($node, $checkChildren = true)
+    {
+        if ($checkChildren && $node->firstChild) {
+            return $node->firstChild;
+        }
+
+        if ($node->nextSibling) {
+            return $node->nextSibling;
+        }
+
+        if ($node->parentNode) {
+            return $this->getNextNode($node->parentNode, false);
+        }
+    }
+
+    /**
+     * @param string[]|string $tagNames
+     *
+     * @return bool
+     */
+    public function isDescendantOf($tagNames)
+    {
+        if (!is_array($tagNames)) {
+            $tagNames = array($tagNames);
+        }
+
+        for ($p = $this->node->parentNode; $p !== false; $p = $p->parentNode) {
+            if (is_null($p)) {
+                return false;
+            }
+
+            if (in_array($p->nodeName, $tagNames)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @param string $markdown
+     */
+    public function setFinalMarkdown($markdown)
+    {
+        $markdown_node = $this->node->ownerDocument->createTextNode($markdown);
+        $this->node->parentNode->replaceChild($markdown_node, $this->node);
+    }
+
+    /**
+     * @return string
+     */
+    public function getChildrenAsString()
+    {
+        return $this->node->C14N();
+    }
+
+    /**
+     * @return int
+     */
+    public function getSiblingPosition()
+    {
+        $position = 0;
+
+        // Loop through all nodes and find the given $node
+        foreach ($this->getParent()->getChildren() as $current_node) {
+            if (!$current_node->isWhitespace()) {
+                $position++;
+            }
+
+            // TODO: Need a less-buggy way of comparing these
+            // Perhaps we can somehow ensure that we always have the exact same object and use === instead?
+            if ($this->equals($current_node)) {
+                break;
+            }
+        }
+
+        return $position;
+    }
+
+    /**
+     * @return int
+     */
+    public function getListItemLevel()
+    {
+        $level = 0;
+        $parent = $this->getParent();
+
+        while ($parent !== null && $parent->node->parentNode) {
+            if ($parent->getTagName() === 'li') {
+                $level++;
+            }
+            $parent = $parent->getParent();
+        }
+
+        return $level;
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return string
+     */
+    public function getAttribute($name)
+    {
+        if ($this->node instanceof \DOMElement) {
+            return $this->node->getAttribute($name);
+        }
+
+        return '';
+    }
+
+    /**
+     * @param ElementInterface $element
+     *
+     * @return bool
+     */
+    public function equals(ElementInterface $element)
+    {
+        if ($element instanceof self) {
+            return $element->node === $this->node;
+        }
+
+        return $element === $this;
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/ElementInterface.php b/vendor/league/html-to-markdown/src/ElementInterface.php
new file mode 100644
index 000000000..138ddf286
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/ElementInterface.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace League\HTMLToMarkdown;
+
+interface ElementInterface
+{
+    /**
+     * @return bool
+     */
+    public function isBlock();
+
+    /**
+     * @return bool
+     */
+    public function isText();
+
+    /**
+     * @return bool
+     */
+    public function isWhitespace();
+
+    /**
+     * @return string
+     */
+    public function getTagName();
+
+    /**
+     * @return string
+     */
+    public function getValue();
+
+    /**
+     * @return ElementInterface|null
+     */
+    public function getParent();
+
+    /**
+     * @param string|string[] $tagNames
+     *
+     * @return bool
+     */
+    public function isDescendantOf($tagNames);
+
+    /**
+     * @return bool
+     */
+    public function hasChildren();
+
+    /**
+     * @return ElementInterface[]
+     */
+    public function getChildren();
+
+    /**
+     * @return ElementInterface|null
+     */
+    public function getNext();
+
+    /**
+     * @return int
+     */
+    public function getSiblingPosition();
+
+    /**
+     * @return string
+     */
+    public function getChildrenAsString();
+
+    /**
+     * @param string $markdown
+     */
+    public function setFinalMarkdown($markdown);
+
+    /**
+     * @param string $name
+     *
+     * @return string
+     */
+    public function getAttribute($name);
+}
diff --git a/vendor/league/html-to-markdown/src/Environment.php b/vendor/league/html-to-markdown/src/Environment.php
new file mode 100644
index 000000000..560cfe613
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/Environment.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace League\HTMLToMarkdown;
+
+use League\HTMLToMarkdown\Converter\BlockquoteConverter;
+use League\HTMLToMarkdown\Converter\CodeConverter;
+use League\HTMLToMarkdown\Converter\CommentConverter;
+use League\HTMLToMarkdown\Converter\ConverterInterface;
+use League\HTMLToMarkdown\Converter\DefaultConverter;
+use League\HTMLToMarkdown\Converter\DivConverter;
+use League\HTMLToMarkdown\Converter\EmphasisConverter;
+use League\HTMLToMarkdown\Converter\HardBreakConverter;
+use League\HTMLToMarkdown\Converter\HeaderConverter;
+use League\HTMLToMarkdown\Converter\HorizontalRuleConverter;
+use League\HTMLToMarkdown\Converter\ImageConverter;
+use League\HTMLToMarkdown\Converter\LinkConverter;
+use League\HTMLToMarkdown\Converter\ListBlockConverter;
+use League\HTMLToMarkdown\Converter\ListItemConverter;
+use League\HTMLToMarkdown\Converter\ParagraphConverter;
+use League\HTMLToMarkdown\Converter\PreformattedConverter;
+use League\HTMLToMarkdown\Converter\TextConverter;
+
+final class Environment
+{
+    /**
+     * @var Configuration
+     */
+    protected $config;
+
+    /**
+     * @var ConverterInterface[]
+     */
+    protected $converters = array();
+
+    public function __construct(array $config = array())
+    {
+        $this->config = new Configuration($config);
+        $this->addConverter(new DefaultConverter());
+    }
+
+    /**
+     * @return Configuration
+     */
+    public function getConfig()
+    {
+        return $this->config;
+    }
+
+    /**
+     * @param ConverterInterface $converter
+     */
+    public function addConverter(ConverterInterface $converter)
+    {
+        if ($converter instanceof ConfigurationAwareInterface) {
+            $converter->setConfig($this->config);
+        }
+
+        foreach ($converter->getSupportedTags() as $tag) {
+            $this->converters[$tag] = $converter;
+        }
+    }
+
+    /**
+     * @param string $tag
+     *
+     * @return ConverterInterface
+     */
+    public function getConverterByTag($tag)
+    {
+        if (isset($this->converters[$tag])) {
+            return $this->converters[$tag];
+        }
+
+        return $this->converters[DefaultConverter::DEFAULT_CONVERTER];
+    }
+
+    /**
+     * @param array $config
+     *
+     * @return Environment
+     */
+    public static function createDefaultEnvironment(array $config = array())
+    {
+        $environment = new static($config);
+
+        $environment->addConverter(new BlockquoteConverter());
+        $environment->addConverter(new CodeConverter());
+        $environment->addConverter(new CommentConverter());
+        $environment->addConverter(new DivConverter());
+        $environment->addConverter(new EmphasisConverter());
+        $environment->addConverter(new HardBreakConverter());
+        $environment->addConverter(new HeaderConverter());
+        $environment->addConverter(new HorizontalRuleConverter());
+        $environment->addConverter(new ImageConverter());
+        $environment->addConverter(new LinkConverter());
+        $environment->addConverter(new ListBlockConverter());
+        $environment->addConverter(new ListItemConverter());
+        $environment->addConverter(new ParagraphConverter());
+        $environment->addConverter(new PreformattedConverter());
+        $environment->addConverter(new TextConverter());
+
+        return $environment;
+    }
+}
diff --git a/vendor/league/html-to-markdown/src/HtmlConverter.php b/vendor/league/html-to-markdown/src/HtmlConverter.php
new file mode 100644
index 000000000..db3c29e1c
--- /dev/null
+++ b/vendor/league/html-to-markdown/src/HtmlConverter.php
@@ -0,0 +1,231 @@
+<?php
+
+namespace League\HTMLToMarkdown;
+
+/**
+ * Class HtmlConverter
+ *
+ * A helper class to convert HTML to Markdown.
+ *
+ * @author Colin O'Dell <colinodell@gmail.com>
+ * @author Nick Cernis <nick@cern.is>
+ *
+ * @link https://github.com/thephpleague/html-to-markdown/ Latest version on GitHub.
+ *
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+class HtmlConverter
+{
+    /**
+     * @var Environment
+     */
+    protected $environment;
+
+    /**
+     * Constructor
+     *
+     * @param Environment|array $options Environment object or configuration options
+     */
+    public function __construct($options = array())
+    {
+        if ($options instanceof Environment) {
+            $this->environment = $options;
+        } elseif (is_array($options)) {
+            $defaults = array(
+                'header_style' => 'setext', // Set to 'atx' to output H1 and H2 headers as # Header1 and ## Header2
+                'suppress_errors' => true, // Set to false to show warnings when loading malformed HTML
+                'strip_tags' => false, // Set to true to strip tags that don't have markdown equivalents. N.B. Strips tags, not their content. Useful to clean MS Word HTML output.
+                'bold_style' => '**', // Set to '__' if you prefer the underlined style
+                'italic_style' => '_', // Set to '*' if you prefer the asterisk style
+                'remove_nodes' => '', // space-separated list of dom nodes that should be removed. example: 'meta style script'
+                'hard_break' => false,// Set to true to turn <br> into `\n` instead of `  \n`
+            );
+
+            $this->environment = Environment::createDefaultEnvironment($defaults);
+
+            $this->environment->getConfig()->merge($options);
+        }
+    }
+
+    /**
+     * @return Environment
+     */
+    public function getEnvironment()
+    {
+        return $this->environment;
+    }
+
+    /**
+     * @return Configuration
+     */
+    public function getConfig()
+    {
+        return $this->environment->getConfig();
+    }
+
+    /**
+     * Convert
+     *
+     * @see HtmlConverter::convert
+     *
+     * @param string $html
+     *
+     * @return string The Markdown version of the html
+     */
+    public function __invoke($html)
+    {
+        return $this->convert($html);
+    }
+
+    /**
+     * Convert
+     *
+     * Loads HTML and passes to getMarkdown()
+     *
+     * @param string $html
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return string The Markdown version of the html
+     */
+    public function convert($html)
+    {
+        if (trim($html) === '') {
+            return '';
+        }
+
+        $document = $this->createDOMDocument($html);
+
+        // Work on the entire DOM tree (including head and body)
+        if (!($root = $document->getElementsByTagName('html')->item(0))) {
+            throw new \InvalidArgumentException('Invalid HTML was provided');
+        }
+
+        $rootElement = new Element($root);
+        $this->convertChildren($rootElement);
+
+        // Store the now-modified DOMDocument as a string
+        $markdown = $document->saveHTML();
+
+        return $this->sanitize($markdown);
+    }
+
+    /**
+     * @param string $html
+     *
+     * @return \DOMDocument
+     */
+    private function createDOMDocument($html)
+    {
+        $document = new \DOMDocument();
+
+        if ($this->getConfig()->getOption('suppress_errors')) {
+            // Suppress conversion errors (from http://bit.ly/pCCRSX)
+            libxml_use_internal_errors(true);
+        }
+
+        // Hack to load utf-8 HTML (from http://bit.ly/pVDyCt)
+        $document->loadHTML('<?xml encoding="UTF-8">' . $html);
+        $document->encoding = 'UTF-8';
+
+        if ($this->getConfig()->getOption('suppress_errors')) {
+            libxml_clear_errors();
+        }
+
+        return $document;
+    }
+
+    /**
+     * Convert Children
+     *
+     * Recursive function to drill into the DOM and convert each node into Markdown from the inside out.
+     *
+     * Finds children of each node and convert those to #text nodes containing their Markdown equivalent,
+     * starting with the innermost element and working up to the outermost element.
+     *
+     * @param ElementInterface $element
+     */
+    private function convertChildren(ElementInterface $element)
+    {
+        // Don't convert HTML code inside <code> and <pre> blocks to Markdown - that should stay as HTML
+        // except if the current node is a code tag, which needs to be converted by the CodeConverter.
+        if ($element->isDescendantOf(array('pre', 'code')) && $element->getTagName() !== 'code') {
+            return;
+        }
+
+        // If the node has children, convert those to Markdown first
+        if ($element->hasChildren()) {
+            foreach ($element->getChildren() as $child) {
+                $this->convertChildren($child);
+            }
+        }
+
+        // Now that child nodes have been converted, convert the original node
+        $markdown = $this->convertToMarkdown($element);
+
+        // Create a DOM text node containing the Markdown equivalent of the original node
+
+        // Replace the old $node e.g. '<h3>Title</h3>' with the new $markdown_node e.g. '### Title'
+        $element->setFinalMarkdown($markdown);
+    }
+
+    /**
+     * Convert to Markdown
+     *
+     * Converts an individual node into a #text node containing a string of its Markdown equivalent.
+     *
+     * Example: An <h3> node with text content of 'Title' becomes a text node with content of '### Title'
+     *
+     * @param ElementInterface $element
+     *
+     * @return string The converted HTML as Markdown
+     */
+    protected function convertToMarkdown(ElementInterface $element)
+    {
+        $tag = $element->getTagName();
+
+        // Strip nodes named in remove_nodes
+        $tags_to_remove = explode(' ', $this->getConfig()->getOption('remove_nodes'));
+        if (in_array($tag, $tags_to_remove)) {
+            return false;
+        }
+
+        $converter = $this->environment->getConverterByTag($tag);
+
+        return $converter->convert($element);
+    }
+
+    /**
+     * @param string $markdown
+     *
+     * @return string
+     */
+    protected function sanitize($markdown)
+    {
+        $markdown = html_entity_decode($markdown, ENT_QUOTES, 'UTF-8');
+        $markdown = preg_replace('/<!DOCTYPE [^>]+>/', '', $markdown); // Strip doctype declaration
+        $markdown = trim($markdown); // Remove blank spaces at the beggining of the html
+
+        /*
+         * Removing unwanted tags. Tags should be added to the array in the order they are expected.
+         * XML, html and body opening tags should be in that order. Same case with closing tags
+         */
+        $unwanted = array('<?xml encoding="UTF-8">', '<html>', '</html>', '<body>', '</body>', '<head>', '</head>', '&#xD;');
+
+        foreach ($unwanted as $tag) {
+            if (strpos($tag, '/') === false) {
+                // Opening tags
+                if (strpos($markdown, $tag) === 0) {
+                    $markdown = substr($markdown, strlen($tag));
+                }
+            } else {
+                // Closing tags
+                if (strpos($markdown, $tag) === strlen($markdown) - strlen($tag)) {
+                    $markdown = substr($markdown, 0, -strlen($tag));
+                }
+            }
+        }
+
+        return trim($markdown, "\n\r\0\x0B");
+    }
+}
diff --git a/vendor/pixel418/markdownify/CHANGELOG.md b/vendor/pixel418/markdownify/CHANGELOG.md
deleted file mode 100644
index a0900fdf5..000000000
--- a/vendor/pixel418/markdownify/CHANGELOG.md
+++ /dev/null
@@ -1,76 +0,0 @@
-CHANGELOG
-==============
-
-
-21/09/2016 v2.2.1
---------------
-
- * Fix: Moving trailing whitespace from inline elements outside of the element
- * Feature: Use PSR-4
- * Feature: PHP 7.0 support in continuous integration
- * Doc: Update of the README
-
-
-07/09/2016 v2.2.0
---------------
-
- * Fix: Reset state between each parsing
-
-
-19/02/2016 v2.1.11
---------------
-
- * Fix: Empty table cell conversion
-
-
-10/02/2016 v2.1.10
---------------
-
- * Fix: Handle nested table.
-
-
-01/04/2015 v2.1.9
---------------
-
- * Fix: Handle HTML breaks & spaces in a less destructive way.
-
-
-26/03/2015 v2.1.8
---------------
-
- * Fix: Use alternative italic character
- * Fix: Handle HTML breaks inside another tag
- * Fix: Handle HTML spaces around tags
-
-
-07/11/2014 v2.1.7
---------------
-
- * Change composer name to "elephant418/markdownify"
-
-
-14/07/2014 v2.1.6
---------------
-
- * Fix: Simulate a paragraph for inline text preceding block element
- * Fix: Nested lists
- * Fix: setKeepHTML method
- * Feature: PHP 5.5 & 5.6 support in continuous integration
-
-
-16/03/2014 v2.1.5
---------------
-
-Add display settings
-
- * Test: Add tests for footnotes after every paragraph or not
- * Feature: Allow to display link reference in paragraph, without footnotes
-
-
-27/02/2014 v2.1.4
---------------
-
-Improve how ConverterExtra handle id & class attributes:
-
- * Feature: Allow id & class attributes on links
- * Feature: Allow class attributes on headings
\ No newline at end of file
diff --git a/vendor/pixel418/markdownify/LICENSE b/vendor/pixel418/markdownify/LICENSE
deleted file mode 100644
index 5ab7695ab..000000000
--- a/vendor/pixel418/markdownify/LICENSE
+++ /dev/null
@@ -1,504 +0,0 @@
-		  GNU LESSER GENERAL PUBLIC LICENSE
-		       Version 2.1, February 1999
-
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-
-    This library is free software; you can redistribute it and/or
-    modify it under the terms of the GNU Lesser General Public
-    License as published by the Free Software Foundation; either
-    version 2.1 of the License, or (at your option) any later version.
-
-    This library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-    Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public
-    License along with this library; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-
-Also add information on how to contact you by electronic and paper mail.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the library, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the
-  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
-
-  <signature of Ty Coon>, 1 April 1990
-  Ty Coon, President of Vice
-
-That's all there is to it!
-
-
diff --git a/vendor/pixel418/markdownify/README.md b/vendor/pixel418/markdownify/README.md
deleted file mode 100644
index 8855b0d05..000000000
--- a/vendor/pixel418/markdownify/README.md
+++ /dev/null
@@ -1,63 +0,0 @@
-# Markdownify
-
-[![Build Status](https://travis-ci.org/Elephant418/Markdownify.png?branch=master)](https://travis-ci.org/Elephant418/Markdownify?branch=master)
-[![Total Downloads](https://poser.pugx.org/pixel418/markdownify/downloads)](https://packagist.org/packages/pixel418/markdownify)
-[![License LGPL](https://poser.pugx.org/pixel418/markdownify/license)](https://opensource.org/licenses/lgpl-2.1.php)
-
-The HTML to Markdown converter for PHP
-
-[Code example](#code-example) | [How to Install](#how-to-install) | [How to Contribute](#how-to-contribute) | [Author & Community](#author--community)
-
-
-
-Code example
---------
-
-### Markdown
-
-```php
-$converter = new Markdownify\Converter;
-$converter->parseString('<h1>Heading</h1>');
-// Returns: # Heading
-```
-
-### Markdown Extra [as defined by @michelf](http://michelf.ca/projects/php-markdown/extra/)
-
-```php
-$converter = new Markdownify\ConverterExtra;
-$converter->parseString('<h1 id="md">Heading</h1>');
-// Returns: # Heading {#md}
-```
-
-
-
-How to Install
---------
-
-This library package requires `PHP 5.3` or later.<br>
-Install [Composer](http://getcomposer.org/doc/01-basic-usage.md#installation) and run the following command to get the latest version:
-
-```sh
-composer require pixel418/markdownify
-```
-
-
-
-How to Contribute
---------
-
-1. Fork the Markdownify repository
-2. Create a new branch for each feature or improvement
-3. Send a pull request from each feature branch to the **v2.x** branch
-
-If you don't know much about pull request, you can read [the Github article](https://help.github.com/articles/using-pull-requests)
-
-
-
-Author & Community
---------
-
-Markdownify is under [LGPL License](http://opensource.org/licenses/LGPL-2.1)<br>
-It was created by [Milian Wolff](http://milianw.de)<br>
-It was converted to a Symfony Bundle by [Peter Kruithof](https://github.com/pkruithof)<br>
-It is maintained by [Thomas ZILLIOX](http://tzi.fr)
diff --git a/vendor/pixel418/markdownify/composer.json b/vendor/pixel418/markdownify/composer.json
deleted file mode 100644
index 71d9f3565..000000000
--- a/vendor/pixel418/markdownify/composer.json
+++ /dev/null
@@ -1,38 +0,0 @@
-{
-    "name": "pixel418/markdownify",
-    "type": "lib",
-    "description": "The HTML to Markdown converter for PHP ",
-    "keywords": ["markdown", "markdownify"],
-    "license": "LGPL",
-    "homepage": "https://github.com/elephant418/Markdownify",
-    "authors": [
-        {
-            "name": "Milian Wolff",
-            "email": "mail@milianw.de",
-            "homepage": "http://milianw.de"
-
-        },
-        {
-            "name": "Peter Kruithof",
-            "email": "pkruithof@gmail.com",
-            "homepage": "http://pkruithof.tumblr.com/"
-        },
-        {
-            "name": "Thomas Zilliox",
-            "email": "hello@tzi.fr",
-            "homepage": "http://tzi.fr"
-        }
-    ],
-    "require": {
-        "php": ">=5.3.0"
-    },
-    "require-dev": {
-        "phpunit/phpunit": "^4.8"
-    },
-    "autoload": {
-        "psr-4": {
-            "Markdownify\\": "src",
-            "Test\\Markdownify\\": "test"
-        }
-    }
-}
diff --git a/vendor/pixel418/markdownify/src/Converter.php b/vendor/pixel418/markdownify/src/Converter.php
deleted file mode 100644
index 77c62dc7e..000000000
--- a/vendor/pixel418/markdownify/src/Converter.php
+++ /dev/null
@@ -1,1400 +0,0 @@
-<?php
-
-/* This file is part of the Markdownify project, which is under LGPL license */
-
-namespace Markdownify;
-
-/**
- * default configuration
- */
-define('MDFY_BODYWIDTH', false);
-define('MDFY_KEEPHTML', true);
-
-/**
- * HTML to Markdown converter class
- */
-class Converter
-{
-    /**
-     * html parser object
-     *
-     * @var parseHTML
-     */
-    protected $parser;
-
-    /**
-     * markdown output
-     *
-     * @var string
-     */
-    protected $output;
-
-    /**
-     * stack with tags which where not converted to html
-     *
-     * @var array<string>
-     */
-    protected $notConverted = array();
-
-    /**
-     * skip conversion to markdown
-     *
-     * @var bool
-     */
-    protected $skipConversion = false;
-
-    /* options */
-
-    /**
-     * keep html tags which cannot be converted to markdown
-     *
-     * @var bool
-     */
-    protected $keepHTML = false;
-
-    /**
-     * wrap output, set to 0 to skip wrapping
-     *
-     * @var int
-     */
-    protected $bodyWidth = 0;
-
-    /**
-     * minimum body width
-     *
-     * @var int
-     */
-    protected $minBodyWidth = 25;
-
-    /**
-     * position where the link reference will be displayed
-     *
-     *
-     * @var int
-     */
-    protected $linkPosition;
-    const LINK_AFTER_CONTENT = 0;
-    const LINK_AFTER_PARAGRAPH = 1;
-    const LINK_IN_PARAGRAPH = 2;
-
-    /**
-     * stores current buffers
-     *
-     * @var array<string>
-     */
-    protected $buffer = array();
-
-    /**
-     * stores current buffers
-     *
-     * @var array<string>
-     */
-    protected $footnotes = array();
-
-    /**
-     * tags with elements which can be handled by markdown
-     *
-     * @var array<string>
-     */
-    protected $isMarkdownable = array(
-        'p' => array(),
-        'ul' => array(),
-        'ol' => array(),
-        'li' => array(),
-        'br' => array(),
-        'blockquote' => array(),
-        'code' => array(),
-        'pre' => array(),
-        'a' => array(
-            'href' => 'required',
-            'title' => 'optional',
-        ),
-        'strong' => array(),
-        'b' => array(),
-        'em' => array(),
-        'i' => array(),
-        'img' => array(
-            'src' => 'required',
-            'alt' => 'optional',
-            'title' => 'optional',
-        ),
-        'h1' => array(),
-        'h2' => array(),
-        'h3' => array(),
-        'h4' => array(),
-        'h5' => array(),
-        'h6' => array(),
-        'hr' => array(),
-    );
-
-    /**
-     * html tags to be ignored (contents will be parsed)
-     *
-     * @var array<string>
-     */
-    protected $ignore = array(
-        'html',
-        'body',
-    );
-
-    /**
-     * html tags to be dropped (contents will not be parsed!)
-     *
-     * @var array<string>
-     */
-    protected $drop = array(
-        'script',
-        'head',
-        'style',
-        'form',
-        'area',
-        'object',
-        'param',
-        'iframe',
-    );
-
-    /**
-     * html block tags that allow inline & block children
-     *
-     * @var array<string>
-     */
-    protected $allowMixedChildren = array(
-        'li'
-    );
-
-    /**
-     * Markdown indents which could be wrapped
-     * @note: use strings in regex format
-     *
-     * @var array<string>
-     */
-    protected $wrappableIndents = array(
-        '\*   ', // ul
-        '\d.  ', // ol
-        '\d\d. ', // ol
-        '> ', // blockquote
-        '', // p
-    );
-
-    /**
-     * list of chars which have to be escaped in normal text
-     * @note: use strings in regex format
-     *
-     * @var array
-     *
-     * TODO: what's with block chars / sequences at the beginning of a block?
-     */
-    protected $escapeInText = array(
-        '\*\*([^*]+)\*\*' => '\*\*$1\*\*', // strong
-        '\*([^*]+)\*' => '\*$1\*', // em
-        '__(?! |_)(.+)(?!<_| )__' => '\_\_$1\_\_', // strong
-        '_(?! |_)(.+)(?!<_| )_' => '\_$1\_', // em
-        '([-*_])([ ]{0,2}\1){2,}' => '\\\\$0', // hr
-        '`' => '\`', // code
-        '\[(.+)\](\s*\()' => '\[$1\]$2', // links: [text] (url) => [text\] (url)
-        '\[(.+)\](\s*)\[(.*)\]' => '\[$1\]$2\[$3\]', // links: [text][id] => [text\][id\]
-        '^#(#{0,5}) ' => '\#$1 ', // header
-    );
-
-    /**
-     * wether last processed node was a block tag or not
-     *
-     * @var bool
-     */
-    protected $lastWasBlockTag = false;
-
-    /**
-     * name of last closed tag
-     *
-     * @var string
-     */
-    protected $lastClosedTag = '';
-
-    /**
-     * number of line breaks before next inline output
-     */
-    protected $lineBreaks = 0;
-
-    /**
-     * node stack, e.g. for <a> and <abbr> tags
-     *
-     * @var array<array>
-     */
-    protected $stack = array();
-
-    /**
-     * current indentation
-     *
-     * @var string
-     */
-    protected $indent = '';
-
-    /**
-     * constructor, set options, setup parser
-     *
-     * @param int $linkPosition define the position of links
-     * @param int $bodyWidth whether or not to wrap the output to the given width
-     *             defaults to false
-     * @param bool $keepHTML whether to keep non markdownable HTML or to discard it
-     *             defaults to true (HTML will be kept)
-     * @return void
-     */
-    public function __construct($linkPosition = self::LINK_AFTER_CONTENT, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML)
-    {
-        $this->linkPosition = $linkPosition;
-        $this->keepHTML = $keepHTML;
-
-        if ($bodyWidth > $this->minBodyWidth) {
-            $this->bodyWidth = intval($bodyWidth);
-        } else {
-            $this->bodyWidth = false;
-        }
-
-        $this->parser = new Parser;
-        $this->parser->noTagsInCode = true;
-
-        // we don't have to do this every time
-        $search = array();
-        $replace = array();
-        foreach ($this->escapeInText as $s => $r) {
-            array_push($search, '@(?<!\\\)' . $s . '@U');
-            array_push($replace, $r);
-        }
-        $this->escapeInText = array(
-            'search' => $search,
-            'replace' => $replace
-        );
-    }
-
-    /**
-     * parse a HTML string
-     *
-     * @param string $html
-     * @return string markdown formatted
-     */
-    public function parseString($html)
-    {
-        $this->resetState();
-
-        $this->parser->html = $html;
-        $this->parse();
-
-        return $this->output;
-    }
-
-    /**
-     * set the position where the link reference will be displayed
-     *
-     * @param int $linkPosition
-     * @return void
-     */
-    public function setLinkPosition($linkPosition)
-    {
-        $this->linkPosition = $linkPosition;
-    }
-
-    /**
-     * set keep HTML tags which cannot be converted to markdown
-     *
-     * @param bool $linkPosition
-     * @return void
-     */
-    public function setKeepHTML($keepHTML)
-    {
-        $this->keepHTML = $keepHTML;
-    }
-
-    /**
-     * iterate through the nodes and decide what we
-     * shall do with the current node
-     *
-     * @param void
-     * @return void
-     */
-    protected function parse()
-    {
-        $this->output = '';
-        // drop tags
-        $this->parser->html = preg_replace('#<(' . implode('|', $this->drop) . ')[^>]*>.*</\\1>#sU', '', $this->parser->html);
-        while ($this->parser->nextNode()) {
-            switch ($this->parser->nodeType) {
-                case 'doctype':
-                    break;
-                case 'pi':
-                case 'comment':
-                    if ($this->keepHTML) {
-                        $this->flushLinebreaks();
-                        $this->out($this->parser->node);
-                        $this->setLineBreaks(2);
-                    }
-                    // else drop
-                    break;
-                case 'text':
-                    $this->handleText();
-                    break;
-                case 'tag':
-                    if (in_array($this->parser->tagName, $this->ignore)) {
-                        break;
-                    }
-                    // If the previous tag was not a block element, we simulate a paragraph tag
-                    if ($this->parser->isBlockElement && $this->parser->isNextToInlineContext && !in_array($this->parent(), $this->allowMixedChildren)) {
-                        $this->setLineBreaks(2);
-                    }
-                    if ($this->parser->isStartTag) {
-                        $this->flushLinebreaks();
-                    }
-                    if ($this->skipConversion) {
-                        $this->isMarkdownable(); // update notConverted
-                        $this->handleTagToText();
-                        continue;
-                    }
-
-                    // block elements
-                    if (!$this->parser->keepWhitespace && $this->parser->isBlockElement) {
-                        $this->fixBlockElementSpacing();
-                    }
-
-                    // inline elements
-                    if (!$this->parser->keepWhitespace && $this->parser->isInlineContext) {
-                        $this->fixInlineElementSpacing();
-                    }
-
-                    if ($this->isMarkdownable()) {
-                        if ($this->parser->isBlockElement && $this->parser->isStartTag && !$this->lastWasBlockTag && !empty($this->output)) {
-                            if (!empty($this->buffer)) {
-                                $str =& $this->buffer[count($this->buffer) - 1];
-                            } else {
-                                $str =& $this->output;
-                            }
-                            if (substr($str, -strlen($this->indent) - 1) != "\n" . $this->indent) {
-                                $str .= "\n" . $this->indent;
-                            }
-                        }
-                        $func = 'handleTag_' . $this->parser->tagName;
-                        $this->$func();
-                        if ($this->linkPosition == self::LINK_AFTER_PARAGRAPH && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) {
-                            $this->flushFootnotes();
-                        }
-                        if (!$this->parser->isStartTag) {
-                            $this->lastClosedTag = $this->parser->tagName;
-                        }
-                    } else {
-                        $this->handleTagToText();
-                        $this->lastClosedTag = '';
-                    }
-                    break;
-                default:
-                    trigger_error('invalid node type', E_USER_ERROR);
-                    break;
-            }
-            $this->lastWasBlockTag = $this->parser->nodeType == 'tag' && $this->parser->isStartTag && $this->parser->isBlockElement;
-        }
-        if (!empty($this->buffer)) {
-            // trigger_error('buffer was not flushed, this is a bug. please report!', E_USER_WARNING);
-            while (!empty($this->buffer)) {
-                $this->out($this->unbuffer());
-            }
-        }
-        // cleanup
-        $this->output = rtrim(str_replace('&amp;', '&', str_replace('&lt;', '<', str_replace('&gt;', '>', $this->output))));
-        // end parsing, flush stacked tags
-        $this->flushFootnotes();
-        $this->stack = array();
-    }
-
-    /**
-     * check if current tag can be converted to Markdown
-     *
-     * @param void
-     * @return bool
-     */
-    protected function isMarkdownable()
-    {
-        if (!isset($this->isMarkdownable[$this->parser->tagName])) {
-            // simply not markdownable
-
-            return false;
-        }
-        if ($this->parser->isStartTag) {
-            $return = true;
-            if ($this->keepHTML) {
-                $diff = array_diff(array_keys($this->parser->tagAttributes), array_keys($this->isMarkdownable[$this->parser->tagName]));
-                if (!empty($diff)) {
-                    // non markdownable attributes given
-                    $return = false;
-                }
-            }
-            if ($return) {
-                foreach ($this->isMarkdownable[$this->parser->tagName] as $attr => $type) {
-                    if ($type == 'required' && !isset($this->parser->tagAttributes[$attr])) {
-                        // required markdown attribute not given
-                        $return = false;
-                        break;
-                    }
-                }
-            }
-            if (!$return) {
-                array_push($this->notConverted, $this->parser->tagName . '::' . implode('/', $this->parser->openTags));
-            }
-
-            return $return;
-        } else {
-            if (!empty($this->notConverted) && end($this->notConverted) === $this->parser->tagName . '::' . implode('/', $this->parser->openTags)) {
-                array_pop($this->notConverted);
-
-                return false;
-            }
-
-            return true;
-        }
-    }
-
-    /**
-     * output footnotes
-     *
-     * @param void
-     * @return void
-     */
-    protected function flushFootnotes()
-    {
-        $out = false;
-        foreach ($this->footnotes as $k => $tag) {
-            if (!isset($tag['unstacked'])) {
-                if (!$out) {
-                    $out = true;
-                    $this->out("\n\n", true);
-                } else {
-                    $this->out("\n", true);
-                }
-                $this->out(' [' . $tag['linkID'] . ']: ' . $this->getLinkReference($tag), true);
-                $tag['unstacked'] = true;
-                $this->footnotes[$k] = $tag;
-            }
-        }
-    }
-
-    /**
-     * return formated link reference
-     *
-     * @param array $tag
-     * @return string link reference
-     */
-    protected function getLinkReference($tag)
-    {
-        return $tag['href'] . (isset($tag['title']) ? ' "' . $tag['title'] . '"' : '');
-    }
-
-    /**
-     * flush enqued linebreaks
-     *
-     * @param void
-     * @return void
-     */
-    protected function flushLinebreaks()
-    {
-        if ($this->lineBreaks && !empty($this->output)) {
-            $this->out(str_repeat("\n" . $this->indent, $this->lineBreaks), true);
-        }
-        $this->lineBreaks = 0;
-    }
-
-    /**
-     * handle non Markdownable tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTagToText()
-    {
-        if (!$this->keepHTML) {
-            if (!$this->parser->isStartTag && $this->parser->isBlockElement) {
-                $this->setLineBreaks(2);
-            }
-        } else {
-            // dont convert to markdown inside this tag
-            /** TODO: markdown extra **/
-            if (!$this->parser->isEmptyTag) {
-                if ($this->parser->isStartTag) {
-                    if (!$this->skipConversion) {
-                        $this->skipConversion = $this->parser->tagName . '::' . implode('/', $this->parser->openTags);
-                    }
-                } else {
-                    if ($this->skipConversion == $this->parser->tagName . '::' . implode('/', $this->parser->openTags)) {
-                        $this->skipConversion = false;
-                    }
-                }
-            }
-
-            if ($this->parser->isBlockElement) {
-                if ($this->parser->isStartTag) {
-                    // looks like ins or del are block elements now
-                    if (in_array($this->parent(), array('ins', 'del'))) {
-                        $this->out("\n", true);
-                        $this->indent('  ');
-                    }
-                    // don't indent inside <pre> tags
-                    if ($this->parser->tagName == 'pre') {
-                        $this->out($this->parser->node);
-                        static $indent;
-                        $indent = $this->indent;
-                        $this->indent = '';
-                    } else {
-                        $this->out($this->parser->node . "\n" . $this->indent);
-                        if (!$this->parser->isEmptyTag) {
-                            $this->indent('  ');
-                        } else {
-                            $this->setLineBreaks(1);
-                        }
-                        $this->parser->html = ltrim($this->parser->html);
-                    }
-                } else {
-                    if (!$this->parser->keepWhitespace) {
-                        $this->output = rtrim($this->output);
-                    }
-                    if ($this->parser->tagName != 'pre') {
-                        $this->indent('  ');
-                        $this->out("\n" . $this->indent . $this->parser->node);
-                    } else {
-                        // reset indentation
-                        $this->out($this->parser->node);
-                        static $indent;
-                        $this->indent = $indent;
-                    }
-
-                    if (in_array($this->parent(), array('ins', 'del'))) {
-                        // ins or del was block element
-                        $this->out("\n");
-                        $this->indent('  ');
-                    }
-                    if ($this->parser->tagName == 'li') {
-                        $this->setLineBreaks(1);
-                    } else {
-                        $this->setLineBreaks(2);
-                    }
-                }
-            } else {
-                $this->out($this->parser->node);
-            }
-            if (in_array($this->parser->tagName, array('code', 'pre'))) {
-                if ($this->parser->isStartTag) {
-                    $this->buffer();
-                } else {
-                    // add stuff so cleanup just reverses this
-                    $this->out(str_replace('&lt;', '&amp;lt;', str_replace('&gt;', '&amp;gt;', $this->unbuffer())));
-                }
-            }
-        }
-    }
-
-    /**
-     * handle plain text
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleText()
-    {
-        if ($this->hasParent('pre') && strpos($this->parser->node, "\n") !== false) {
-            $this->parser->node = str_replace("\n", "\n" . $this->indent, $this->parser->node);
-        }
-        if (!$this->hasParent('code') && !$this->hasParent('pre')) {
-            // entity decode
-            $this->parser->node = $this->decode($this->parser->node);
-            if (!$this->skipConversion) {
-                // escape some chars in normal Text
-                $this->parser->node = preg_replace($this->escapeInText['search'], $this->escapeInText['replace'], $this->parser->node);
-            }
-        } else {
-            $this->parser->node = str_replace(array('&quot;', '&apos'), array('"', '\''), $this->parser->node);
-        }
-        $this->out($this->parser->node);
-        $this->lastClosedTag = '';
-    }
-
-    /**
-     * handle <em> and <i> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_em()
-    {
-        $this->out('_', true);
-    }
-
-    protected function handleTag_i()
-    {
-        $this->handleTag_em();
-    }
-
-    /**
-     * handle <strong> and <b> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_strong()
-    {
-        $this->out('**', true);
-    }
-
-    protected function handleTag_b()
-    {
-        $this->handleTag_strong();
-    }
-
-    /**
-     * handle <h1> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h1()
-    {
-        $this->handleHeader(1);
-    }
-
-    /**
-     * handle <h2> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h2()
-    {
-        $this->handleHeader(2);
-    }
-
-    /**
-     * handle <h3> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h3()
-    {
-        $this->handleHeader(3);
-    }
-
-    /**
-     * handle <h4> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h4()
-    {
-        $this->handleHeader(4);
-    }
-
-    /**
-     * handle <h5> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h5()
-    {
-        $this->handleHeader(5);
-    }
-
-    /**
-     * handle <h6> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_h6()
-    {
-        $this->handleHeader(6);
-    }
-
-    /**
-     * handle header tags (<h1> - <h6>)
-     *
-     * @param int $level 1-6
-     * @return void
-     */
-    protected function handleHeader($level)
-    {
-        if ($this->parser->isStartTag) {
-            $this->out(str_repeat('#', $level) . ' ', true);
-        } else {
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * handle <p> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_p()
-    {
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * handle <a> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_a()
-    {
-        if ($this->parser->isStartTag) {
-            $this->buffer();
-            $this->handleTag_a_parser();
-            $this->stack();
-        } else {
-            $tag = $this->unstack();
-            $buffer = $this->unbuffer();
-            $this->handleTag_a_converter($tag, $buffer);
-            $this->out($this->handleTag_a_converter($tag, $buffer), true);
-        }
-    }
-
-    /**
-     * handle <a> tags parsing
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_a_parser()
-    {
-        if (isset($this->parser->tagAttributes['title'])) {
-            $this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
-        } else {
-            $this->parser->tagAttributes['title'] = null;
-        }
-        $this->parser->tagAttributes['href'] = $this->decode(trim($this->parser->tagAttributes['href']));
-    }
-
-    /**
-     * handle <a> tags conversion
-     *
-     * @param array $tag
-     * @param string $buffer
-     * @return string The markdownified link
-     */
-    protected function handleTag_a_converter($tag, $buffer)
-    {
-        if (empty($tag['href']) && empty($tag['title'])) {
-            // empty links... testcase mania, who would possibly do anything like that?!
-            return '[' . $buffer . ']()';
-        }
-
-        if ($buffer == $tag['href'] && empty($tag['title'])) {
-            // <http://example.com>
-            return '<' . $buffer . '>';
-        }
-
-        $bufferDecoded = $this->decode(trim($buffer));
-        if (substr($tag['href'], 0, 7) == 'mailto:' && 'mailto:' . $bufferDecoded == $tag['href']) {
-            if (is_null($tag['title'])) {
-                // <mail@example.com>
-                return '<' . $bufferDecoded . '>';
-            }
-            // [mail@example.com][1]
-            // ...
-            //  [1]: mailto:mail@example.com Title
-            $tag['href'] = 'mailto:' . $bufferDecoded;
-        }
-
-        if ($this->linkPosition == self::LINK_IN_PARAGRAPH) {
-            return '[' . $buffer . '](' . $this->getLinkReference($tag) . ')';
-        }
-
-        // [This link][id]
-        foreach ($this->footnotes as $tag2) {
-            if ($tag2['href'] == $tag['href'] && $tag2['title'] === $tag['title']) {
-                $tag['linkID'] = $tag2['linkID'];
-                break;
-            }
-        }
-        if (!isset($tag['linkID'])) {
-            $tag['linkID'] = count($this->footnotes) + 1;
-            array_push($this->footnotes, $tag);
-        }
-
-        return '[' . $buffer . '][' . $tag['linkID'] . ']';
-    }
-
-    /**
-     * handle <img /> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_img()
-    {
-        if (!$this->parser->isStartTag) {
-            return; // just to be sure this is really an empty tag...
-        }
-
-        if (isset($this->parser->tagAttributes['title'])) {
-            $this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
-        } else {
-            $this->parser->tagAttributes['title'] = null;
-        }
-        if (isset($this->parser->tagAttributes['alt'])) {
-            $this->parser->tagAttributes['alt'] = $this->decode($this->parser->tagAttributes['alt']);
-        } else {
-            $this->parser->tagAttributes['alt'] = null;
-        }
-
-        if (empty($this->parser->tagAttributes['src'])) {
-            // support for "empty" images... dunno if this is really needed
-            // but there are some test cases which do that...
-            if (!empty($this->parser->tagAttributes['title'])) {
-                $this->parser->tagAttributes['title'] = ' ' . $this->parser->tagAttributes['title'] . ' ';
-            }
-            $this->out('![' . $this->parser->tagAttributes['alt'] . '](' . $this->parser->tagAttributes['title'] . ')', true);
-
-            return;
-        } else {
-            $this->parser->tagAttributes['src'] = $this->decode($this->parser->tagAttributes['src']);
-        }
-
-        $out = '![' . $this->parser->tagAttributes['alt'] . ']';
-        if ($this->linkPosition == self::LINK_IN_PARAGRAPH) {
-            $out .= '(' . $this->parser->tagAttributes['src'];
-            if ($this->parser->tagAttributes['title']) {
-                $out .= ' "' . $this->parser->tagAttributes['title'] . '"';
-            }
-            $out .= ')';
-            $this->out($out, true);
-            return;
-        }
-
-        // ![This image][id]
-        $link_id = false;
-        if (!empty($this->footnotes)) {
-            foreach ($this->footnotes as $tag) {
-                if ($tag['href'] == $this->parser->tagAttributes['src']
-                    && $tag['title'] === $this->parser->tagAttributes['title']
-                ) {
-                    $link_id = $tag['linkID'];
-                    break;
-                }
-            }
-        }
-        if (!$link_id) {
-            $link_id = count($this->footnotes) + 1;
-            $tag = array(
-                'href' => $this->parser->tagAttributes['src'],
-                'linkID' => $link_id,
-                'title' => $this->parser->tagAttributes['title']
-            );
-            array_push($this->footnotes, $tag);
-        }
-        $out .= '[' . $link_id . ']';
-
-        $this->out($out, true);
-    }
-
-    /**
-     * handle <code> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_code()
-    {
-        if ($this->hasParent('pre')) {
-            // ignore code blocks inside <pre>
-
-            return;
-        }
-        if ($this->parser->isStartTag) {
-            $this->buffer();
-        } else {
-            $buffer = $this->unbuffer();
-            // use as many backticks as needed
-            preg_match_all('#`+#', $buffer, $matches);
-            if (!empty($matches[0])) {
-                rsort($matches[0]);
-
-                $ticks = '`';
-                while (true) {
-                    if (!in_array($ticks, $matches[0])) {
-                        break;
-                    }
-                    $ticks .= '`';
-                }
-            } else {
-                $ticks = '`';
-            }
-            if ($buffer[0] == '`' || substr($buffer, -1) == '`') {
-                $buffer = ' ' . $buffer . ' ';
-            }
-            $this->out($ticks . $buffer . $ticks, true);
-        }
-    }
-
-    /**
-     * handle <pre> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_pre()
-    {
-        if ($this->keepHTML && $this->parser->isStartTag) {
-            // check if a simple <code> follows
-            if (!preg_match('#^\s*<code\s*>#Us', $this->parser->html)) {
-                // this is no standard markdown code block
-                $this->handleTagToText();
-
-                return;
-            }
-        }
-        $this->indent('    ');
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(2);
-        } else {
-            $this->parser->html = ltrim($this->parser->html);
-        }
-    }
-
-    /**
-     * handle <blockquote> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_blockquote()
-    {
-        $this->indent('> ');
-    }
-
-    /**
-     * handle <ul> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_ul()
-    {
-        if ($this->parser->isStartTag) {
-            $this->stack();
-            if (!$this->keepHTML && $this->lastClosedTag == $this->parser->tagName) {
-                $this->out("\n" . $this->indent . '<!-- -->' . "\n" . $this->indent . "\n" . $this->indent);
-            }
-        } else {
-            $this->unstack();
-            if ($this->parent() != 'li' || preg_match('#^\s*(</li\s*>\s*<li\s*>\s*)?<(p|blockquote)\s*>#sU', $this->parser->html)) {
-                // dont make Markdown add unneeded paragraphs
-                $this->setLineBreaks(2);
-            }
-        }
-    }
-
-    /**
-     * handle <ul> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_ol()
-    {
-        // same as above
-        $this->parser->tagAttributes['num'] = 0;
-        $this->handleTag_ul();
-    }
-
-    /**
-     * handle <li> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_li()
-    {
-        if ($this->parent() == 'ol') {
-            $parent =& $this->getStacked('ol');
-            if ($this->parser->isStartTag) {
-                $parent['num']++;
-                $this->out(str_repeat(' ', 3 - strlen($parent['num'])) . $parent['num'] . '. ', true);
-            }
-        } else {
-            if ($this->parser->isStartTag) {
-                $this->out('  * ', true);
-            }
-        }
-        $this->indent('    ', false);
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(1);
-        }
-    }
-
-    /**
-     * handle <hr /> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_hr()
-    {
-        if (!$this->parser->isStartTag) {
-            return; // just to be sure this really is an empty tag
-        }
-        $this->out('* * *', true);
-        $this->setLineBreaks(2);
-    }
-
-    /**
-     * handle <br /> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_br()
-    {
-        $this->out("  \n" . $this->indent, true);
-        $this->parser->html = ltrim($this->parser->html);
-    }
-
-    /**
-     * add current node to the stack
-     * this only stores the attributes
-     *
-     * @param void
-     * @return void
-     */
-    protected function stack()
-    {
-        if (!isset($this->stack[$this->parser->tagName])) {
-            $this->stack[$this->parser->tagName] = array();
-        }
-        array_push($this->stack[$this->parser->tagName], $this->parser->tagAttributes);
-    }
-
-    /**
-     * remove current tag from stack
-     *
-     * @param void
-     * @return array
-     */
-    protected function unstack()
-    {
-        if (!isset($this->stack[$this->parser->tagName]) || !is_array($this->stack[$this->parser->tagName])) {
-            trigger_error('Trying to unstack from empty stack. This must not happen.', E_USER_ERROR);
-        }
-
-        return array_pop($this->stack[$this->parser->tagName]);
-    }
-
-    /**
-     * get last stacked element of type $tagName
-     *
-     * @param string $tagName
-     * @return array
-     */
-    protected function &getStacked($tagName)
-    {
-        // no end() so it can be referenced
-        return $this->stack[$tagName][count($this->stack[$tagName]) - 1];
-    }
-
-    /**
-     * set number of line breaks before next start tag
-     *
-     * @param int $number
-     * @return void
-     */
-    protected function setLineBreaks($number)
-    {
-        if ($this->lineBreaks < $number) {
-            $this->lineBreaks = $number;
-        }
-    }
-
-    /**
-     * buffer next parser output until unbuffer() is called
-     *
-     * @param void
-     * @return void
-     */
-    protected function buffer()
-    {
-        array_push($this->buffer, '');
-    }
-
-    /**
-     * end current buffer and return buffered output
-     *
-     * @param void
-     * @return string
-     */
-    protected function unbuffer()
-    {
-        return array_pop($this->buffer);
-    }
-
-    /**
-     * append string to the correct var, either
-     * directly to $this->output or to the current
-     * buffers
-     *
-     * @param string $put
-     * @param boolean $nowrap
-     * @return void
-     */
-    protected function out($put, $nowrap = false)
-    {
-        if (empty($put)) {
-            return;
-        }
-        if (!empty($this->buffer)) {
-            $this->buffer[count($this->buffer) - 1] .= $put;
-        } else {
-            if ($this->bodyWidth && !$this->parser->keepWhitespace) { // wrap lines
-                // get last line
-                $pos = strrpos($this->output, "\n");
-                if ($pos === false) {
-                    $line = $this->output;
-                } else {
-                    $line = substr($this->output, $pos);
-                }
-
-                if ($nowrap) {
-                    if ($put[0] != "\n" && $this->strlen($line) + $this->strlen($put) > $this->bodyWidth) {
-                        $this->output .= "\n" . $this->indent . $put;
-                    } else {
-                        $this->output .= $put;
-                    }
-
-                    return;
-                } else {
-                    $put .= "\n"; // make sure we get all lines in the while below
-                    $lineLen = $this->strlen($line);
-                    while ($pos = strpos($put, "\n")) {
-                        $putLine = substr($put, 0, $pos + 1);
-                        $put = substr($put, $pos + 1);
-                        $putLen = $this->strlen($putLine);
-                        if ($lineLen + $putLen < $this->bodyWidth) {
-                            $this->output .= $putLine;
-                            $lineLen = $putLen;
-                        } else {
-                            $split = preg_split('#^(.{0,' . ($this->bodyWidth - $lineLen) . '})\b#', $putLine, 2, PREG_SPLIT_OFFSET_CAPTURE | PREG_SPLIT_DELIM_CAPTURE);
-                            $this->output .= rtrim($split[1][0]) . "\n" . $this->indent . $this->wordwrap(ltrim($split[2][0]), $this->bodyWidth, "\n" . $this->indent, false);
-                        }
-                    }
-                    $this->output = substr($this->output, 0, -1);
-
-                    return;
-                }
-            } else {
-                $this->output .= $put;
-            }
-        }
-    }
-
-    /**
-     * indent next output (start tag) or unindent (end tag)
-     *
-     * @param string $str indentation
-     * @param bool $output add indendation to output
-     * @return void
-     */
-    protected function indent($str, $output = true)
-    {
-        if ($this->parser->isStartTag) {
-            $this->indent .= $str;
-            if ($output) {
-                $this->out($str, true);
-            }
-        } else {
-            $this->indent = substr($this->indent, 0, -strlen($str));
-        }
-    }
-
-    /**
-     * decode email addresses
-     *
-     * @author derernst@gmx.ch <http://www.php.net/manual/en/function.html-entity-decode.php#68536>
-     * @author Milian Wolff <http://milianw.de>
-     */
-    protected function decode($text, $quote_style = ENT_QUOTES)
-    {
-        return htmlspecialchars_decode($text, $quote_style);
-    }
-
-    /**
-     * callback for decode() which converts a hexadecimal entity to UTF-8
-     *
-     * @param array $matches
-     * @return string UTF-8 encoded
-     */
-    protected function _decode_hex($matches)
-    {
-        return $this->unichr(hexdec($matches[1]));
-    }
-
-    /**
-     * callback for decode() which converts a numerical entity to UTF-8
-     *
-     * @param array $matches
-     * @return string UTF-8 encoded
-     */
-    protected function _decode_numeric($matches)
-    {
-        return $this->unichr($matches[1]);
-    }
-
-    /**
-     * UTF-8 chr() which supports numeric entities
-     *
-     * @author grey - greywyvern - com <http://www.php.net/manual/en/function.chr.php#55978>
-     * @param array $matches
-     * @return string UTF-8 encoded
-     */
-    protected function unichr($dec)
-    {
-        if ($dec < 128) {
-            $utf = chr($dec);
-        } elseif ($dec < 2048) {
-            $utf = chr(192 + (($dec - ($dec % 64)) / 64));
-            $utf .= chr(128 + ($dec % 64));
-        } else {
-            $utf = chr(224 + (($dec - ($dec % 4096)) / 4096));
-            $utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64));
-            $utf .= chr(128 + ($dec % 64));
-        }
-
-        return $utf;
-    }
-
-    /**
-     * UTF-8 strlen()
-     *
-     * @param string $str
-     * @return int
-     *
-     * @author dtorop 932 at hotmail dot com <http://www.php.net/manual/en/function.strlen.php#37975>
-     * @author Milian Wolff <http://milianw.de>
-     */
-    protected function strlen($str)
-    {
-        if (function_exists('mb_strlen')) {
-            return mb_strlen($str, 'UTF-8');
-        } else {
-            return preg_match_all('/[\x00-\x7F\xC0-\xFD]/', $str, $var_empty);
-        }
-    }
-
-    /**
-     * wordwrap for utf8 encoded strings
-     *
-     * @param string $str
-     * @param integer $len
-     * @param string $what
-     * @return string
-     */
-    protected function wordwrap($str, $width, $break, $cut = false)
-    {
-        if (!$cut) {
-            $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){1,' . $width . '}\b#';
-        } else {
-            $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){' . $width . '}#';
-        }
-        $return = '';
-        while (preg_match($regexp, $str, $matches)) {
-            $string = $matches[0];
-            $str = ltrim(substr($str, strlen($string)));
-            if (!$cut && isset($str[0]) && in_array($str[0], array('.', '!', ';', ':', '?', ','))) {
-                $string .= $str[0];
-                $str = ltrim(substr($str, 1));
-            }
-            $return .= $string . $break;
-        }
-
-        return $return . ltrim($str);
-    }
-
-    /**
-     * check if current node has a $tagName as parent (somewhere, not only the direct parent)
-     *
-     * @param string $tagName
-     * @return bool
-     */
-    protected function hasParent($tagName)
-    {
-        return in_array($tagName, $this->parser->openTags);
-    }
-
-    /**
-     * get tagName of direct parent tag
-     *
-     * @param void
-     * @return string $tagName
-     */
-    protected function parent()
-    {
-        return end($this->parser->openTags);
-    }
-
-    /**
-     * Trims whitespace in block-level elements, on the left side.
-     */
-    protected function fixBlockElementSpacing()
-    {
-        if ($this->parser->isStartTag) {
-            $this->parser->html = ltrim($this->parser->html);
-        }
-    }
-
-    /**
-     * Moves leading/trailing whitespace from inline elements outside of the
-     * element. This is to fix cases like `<strong> Text</strong>`, which if
-     * converted to `** strong**` would be incorrect Markdown.
-     *
-     * Examples:
-     *
-     *   * leading: `<strong> Text</strong>` becomes ` <strong>Text</strong>`
-     *   * trailing: `<strong>Text </strong>` becomes `<strong>Text</strong> `
-     */
-    protected function fixInlineElementSpacing()
-    {
-        if ($this->parser->isStartTag) {
-            // move spaces after the start element to before the element
-            if (preg_match('~^(\s+)~', $this->parser->html, $matches)) {
-                $this->out($matches[1]);
-                $this->parser->html = ltrim($this->parser->html, " \t\0\x0B");
-            }
-        } else {
-            if (!empty($this->buffer)) {
-                $str =& $this->buffer[count($this->buffer) - 1];
-            } else {
-                $str =& $this->output;
-            }
-
-            // move spaces before the end element to after the element
-            if (preg_match('~(\s+)$~', $str, $matches)) {
-                $str = rtrim($str, " \t\0\x0B");
-                $this->parser->html = $matches[1] . $this->parser->html;
-            }
-        }
-    }
-
-    /**
-     * Resetting the state forces the instance to behave as a fresh instance.
-     * Ideal for running within a loop where you want to maintain a single instance.
-     */
-    protected function resetState()
-    {
-        $this->notConverted = array();
-        $this->skipConversion = false;
-        $this->buffer = array();
-        $this->indent = '';
-        $this->stack = array();
-        $this->lineBreaks = 0;
-        $this->lastClosedTag = '';
-        $this->lastWasBlockTag = false;
-        $this->footnotes = array();
-    }
-}
diff --git a/vendor/pixel418/markdownify/src/ConverterExtra.php b/vendor/pixel418/markdownify/src/ConverterExtra.php
deleted file mode 100644
index 733955448..000000000
--- a/vendor/pixel418/markdownify/src/ConverterExtra.php
+++ /dev/null
@@ -1,573 +0,0 @@
-<?php
-
-/* This file is part of the Markdownify project, which is under LGPL license */
-
-namespace Markdownify;
-
-class ConverterExtra extends Converter
-{
-
-    /**
-     * table data, including rows with content and the maximum width of each col
-     *
-     * @var array
-     */
-    protected $table = array();
-
-    /**
-     * current col
-     *
-     * @var int
-     */
-    protected $col = -1;
-
-    /**
-     * current row
-     *
-     * @var int
-     */
-    protected $row = 0;
-
-    /**
-     * constructor, see Markdownify::Markdownify() for more information
-     */
-    public function __construct($linksAfterEachParagraph = self::LINK_AFTER_CONTENT, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML)
-    {
-        parent::__construct($linksAfterEachParagraph, $bodyWidth, $keepHTML);
-
-        // new markdownable tags & attributes
-        // header ids: # foo {bar}
-        $this->isMarkdownable['h1']['id'] = 'optional';
-        $this->isMarkdownable['h1']['class'] = 'optional';
-        $this->isMarkdownable['h2']['id'] = 'optional';
-        $this->isMarkdownable['h2']['class'] = 'optional';
-        $this->isMarkdownable['h3']['id'] = 'optional';
-        $this->isMarkdownable['h3']['class'] = 'optional';
-        $this->isMarkdownable['h4']['id'] = 'optional';
-        $this->isMarkdownable['h4']['class'] = 'optional';
-        $this->isMarkdownable['h5']['id'] = 'optional';
-        $this->isMarkdownable['h5']['class'] = 'optional';
-        $this->isMarkdownable['h6']['id'] = 'optional';
-        $this->isMarkdownable['h6']['class'] = 'optional';
-        // tables
-        $this->isMarkdownable['table'] = array();
-        $this->isMarkdownable['th'] = array(
-            'align' => 'optional',
-        );
-        $this->isMarkdownable['td'] = array(
-            'align' => 'optional',
-        );
-        $this->isMarkdownable['tr'] = array();
-        array_push($this->ignore, 'thead');
-        array_push($this->ignore, 'tbody');
-        array_push($this->ignore, 'tfoot');
-        // definition lists
-        $this->isMarkdownable['dl'] = array();
-        $this->isMarkdownable['dd'] = array();
-        $this->isMarkdownable['dt'] = array();
-        // link class
-        $this->isMarkdownable['a']['id'] = 'optional';
-        $this->isMarkdownable['a']['class'] = 'optional';
-        // footnotes
-        $this->isMarkdownable['fnref'] = array(
-            'target' => 'required',
-        );
-        $this->isMarkdownable['footnotes'] = array();
-        $this->isMarkdownable['fn'] = array(
-            'name' => 'required',
-        );
-        $this->parser->blockElements['fnref'] = false;
-        $this->parser->blockElements['fn'] = true;
-        $this->parser->blockElements['footnotes'] = true;
-        // abbr
-        $this->isMarkdownable['abbr'] = array(
-            'title' => 'required',
-        );
-        // build RegEx lookahead to decide wether table can pe parsed or not
-        $inlineTags = array_keys($this->parser->blockElements, false);
-        $colContents = '(?:[^<]|<(?:' . implode('|', $inlineTags) . '|[^a-z]))*';
-        $this->tableLookaheadHeader = '{
-    ^\s*(?:<thead\s*>)?\s*                                  # open optional thead
-      <tr\s*>\s*(?:                                         # start required row with headers
-        <th(?:\s+align=("|\')(?:left|center|right)\1)?\s*>  # header with optional align
-        \s*' . $colContents . '\s*                              # contents
-        </th>\s*                                            # close header
-      )+</tr>                                               # close row with headers
-    \s*(?:</thead>)?                                        # close optional thead
-    }sxi';
-        $this->tdSubstitute = '\s*' . $colContents . '\s*           # contents
-          </td>\s*';
-        $this->tableLookaheadBody = '{
-      \s*(?:<tbody\s*>)?\s*                                 # open optional tbody
-        (?:<tr\s*>\s*                                       # start row
-          %s                                                # cols to be substituted
-        </tr>)+                                             # close row
-      \s*(?:</tbody>)?                                      # close optional tbody
-    \s*</table>                                             # close table
-    }sxi';
-    }
-
-    /**
-     * handle header tags (<h1> - <h6>)
-     *
-     * @param int $level 1-6
-     * @return void
-     */
-    protected function handleHeader($level)
-    {
-        if ($this->parser->isStartTag) {
-            $this->parser->tagAttributes['cssSelector'] = $this->getCurrentCssSelector();
-            $this->stack();
-        } else {
-            $tag = $this->unstack();
-            if (!empty($tag['cssSelector'])) {
-                // {#id.class}
-                $this->out(' {' . $tag['cssSelector'] . '}');
-            }
-        }
-        parent::handleHeader($level);
-    }
-
-    /**
-     * handle <a> tags parsing
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_a_parser()
-    {
-        parent::handleTag_a_parser();
-        $this->parser->tagAttributes['cssSelector'] = $this->getCurrentCssSelector();
-    }
-
-    /**
-     * handle <a> tags conversion
-     *
-     * @param array $tag
-     * @param string $buffer
-     * @return string The markdownified link
-     */
-    protected function handleTag_a_converter($tag, $buffer)
-    {
-        $output = parent::handleTag_a_converter($tag, $buffer);
-        if (!empty($tag['cssSelector'])) {
-            // [This link][id]{#id.class}
-            $output .= '{' . $tag['cssSelector'] . '}';
-        }
-
-        return $output;
-    }
-
-    /**
-     * handle <abbr> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_abbr()
-    {
-        if ($this->parser->isStartTag) {
-            $this->stack();
-            $this->buffer();
-        } else {
-            $tag = $this->unstack();
-            $tag['text'] = $this->unbuffer();
-            $add = true;
-            foreach ($this->stack['abbr'] as $stacked) {
-                if ($stacked['text'] == $tag['text']) {
-                    /** TODO: differing abbr definitions, i.e. different titles for same text **/
-                    $add = false;
-                    break;
-                }
-            }
-            $this->out($tag['text']);
-            if ($add) {
-                array_push($this->stack['abbr'], $tag);
-            }
-        }
-    }
-
-    /**
-     * flush stacked abbr tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function flushStacked_abbr()
-    {
-        $out = array();
-        foreach ($this->stack['abbr'] as $k => $tag) {
-            if (!isset($tag['unstacked'])) {
-                array_push($out, ' *[' . $tag['text'] . ']: ' . $tag['title']);
-                $tag['unstacked'] = true;
-                $this->stack['abbr'][$k] = $tag;
-            }
-        }
-        if (!empty($out)) {
-            $this->out("\n\n" . implode("\n", $out));
-        }
-    }
-
-    /**
-     * handle <table> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_table()
-    {
-        if ($this->parser->isStartTag) {
-            // check if upcoming table can be converted
-            if ($this->keepHTML) {
-                if (preg_match($this->tableLookaheadHeader, $this->parser->html, $matches)) {
-                    // header seems good, now check body
-                    // get align & number of cols
-                    preg_match_all('#<th(?:\s+align=("|\')(left|right|center)\1)?\s*>#si', $matches[0], $cols);
-                    $regEx = '';
-                    $i = 1;
-                    $aligns = array();
-                    foreach ($cols[2] as $align) {
-                        $align = strtolower($align);
-                        array_push($aligns, $align);
-                        if (empty($align)) {
-                            $align = 'left'; // default value
-                        }
-                        $td = '\s+align=("|\')' . $align . '\\' . $i;
-                        $i++;
-                        if ($align == 'left') {
-                            // look for empty align or left
-                            $td = '(?:' . $td . ')?';
-                        }
-                        $td = '<td' . $td . '\s*>';
-                        $regEx .= $td . $this->tdSubstitute;
-                    }
-                    $regEx = sprintf($this->tableLookaheadBody, $regEx);
-                    if (preg_match($regEx, $this->parser->html, $matches, null, strlen($matches[0]))) {
-                        // this is a markdownable table tag!
-                        $this->table = array(
-                            'rows' => array(),
-                            'col_widths' => array(),
-                            'aligns' => $aligns,
-                        );
-                        $this->row = 0;
-                    } else {
-                        // non markdownable table
-                        $this->handleTagToText();
-                    }
-                } else {
-                    // non markdownable table
-                    $this->handleTagToText();
-                }
-            } else {
-                $this->table = array(
-                    'rows' => array(),
-                    'col_widths' => array(),
-                    'aligns' => array(),
-                );
-                $this->row = 0;
-            }
-        } else {
-            // finally build the table in Markdown Extra syntax
-            $separator = array();
-            if (!isset($this->table['aligns'])) {
-                $this->table['aligns'] = array();
-            }
-            // seperator with correct align identifiers
-            foreach ($this->table['aligns'] as $col => $align) {
-                if (!$this->keepHTML && !isset($this->table['col_widths'][$col])) {
-                    break;
-                }
-                $left = ' ';
-                $right = ' ';
-                switch ($align) {
-                    case 'left':
-                        $left = ':';
-                        break;
-                    case 'center':
-                        $right = ':';
-                        $left = ':';
-                    case 'right':
-                        $right = ':';
-                        break;
-                }
-                array_push($separator, $left . str_repeat('-', $this->table['col_widths'][$col]) . $right);
-            }
-            $separator = '|' . implode('|', $separator) . '|';
-
-            $rows = array();
-            // add padding
-            array_walk_recursive($this->table['rows'], array(&$this, 'alignTdContent'));
-            $header = array_shift($this->table['rows']);
-            array_push($rows, '| ' . implode(' | ', $header) . ' |');
-            array_push($rows, $separator);
-            foreach ($this->table['rows'] as $row) {
-                array_push($rows, '| ' . implode(' | ', $row) . ' |');
-            }
-            $this->out(implode("\n" . $this->indent, $rows));
-            $this->table = array();
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * properly pad content so it is aligned as whished
-     * should be used with array_walk_recursive on $this->table['rows']
-     *
-     * @param string &$content
-     * @param int $col
-     * @return void
-     */
-    protected function alignTdContent(&$content, $col)
-    {
-        if (!isset($this->table['aligns'][$col])) {
-            $this->table['aligns'][$col] = 'left';
-        }
-        switch ($this->table['aligns'][$col]) {
-            default:
-            case 'left':
-                $content .= str_repeat(' ', $this->table['col_widths'][$col] - $this->strlen($content));
-                break;
-            case 'right':
-                $content = str_repeat(' ', $this->table['col_widths'][$col] - $this->strlen($content)) . $content;
-                break;
-            case 'center':
-                $paddingNeeded = $this->table['col_widths'][$col] - $this->strlen($content);
-                $left = floor($paddingNeeded / 2);
-                $right = $paddingNeeded - $left;
-                $content = str_repeat(' ', $left) . $content . str_repeat(' ', $right);
-                break;
-        }
-    }
-
-    /**
-     * handle <tr> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_tr()
-    {
-        if ($this->parser->isStartTag) {
-            $this->col = -1;
-        } else {
-            $this->row++;
-        }
-    }
-
-    /**
-     * handle <td> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_td()
-    {
-        if ($this->parser->isStartTag) {
-            $this->col++;
-            if (!isset($this->table['col_widths'][$this->col])) {
-                $this->table['col_widths'][$this->col] = 0;
-            }
-            $this->buffer();
-        } else {
-            $buffer = trim($this->unbuffer());
-            if (!isset($this->table['col_widths'][$this->col])) {
-                $this->table['col_widths'][$this->col] = 0;
-            }
-            $this->table['col_widths'][$this->col] = max($this->table['col_widths'][$this->col], $this->strlen($buffer));
-            $this->table['rows'][$this->row][$this->col] = $buffer;
-        }
-    }
-
-    /**
-     * handle <th> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_th()
-    {
-        if (!$this->keepHTML && !isset($this->table['rows'][1]) && !isset($this->table['aligns'][$this->col + 1])) {
-            if (isset($this->parser->tagAttributes['align'])) {
-                $this->table['aligns'][$this->col + 1] = $this->parser->tagAttributes['align'];
-            } else {
-                $this->table['aligns'][$this->col + 1] = '';
-            }
-        }
-        $this->handleTag_td();
-    }
-
-    /**
-     * handle <dl> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_dl()
-    {
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * handle <dt> tags
-     *
-     * @param void
-     * @return void
-     **/
-    protected function handleTag_dt()
-    {
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(1);
-        }
-    }
-
-    /**
-     * handle <dd> tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_dd()
-    {
-        if ($this->parser->isStartTag) {
-            if (substr(ltrim($this->parser->html), 0, 3) == '<p>') {
-                // next comes a paragraph, so we'll need an extra line
-                $this->out("\n" . $this->indent);
-            } elseif (substr($this->output, -2) == "\n\n") {
-                $this->output = substr($this->output, 0, -1);
-            }
-            $this->out(':   ');
-            $this->indent('    ', false);
-        } else {
-            // lookahead for next dt
-            if (substr(ltrim($this->parser->html), 0, 4) == '<dt>') {
-                $this->setLineBreaks(2);
-            } else {
-                $this->setLineBreaks(1);
-            }
-            $this->indent('    ');
-        }
-    }
-
-    /**
-     * handle <fnref /> tags (custom footnote references, see markdownify_extra::parseString())
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_fnref()
-    {
-        $this->out('[^' . $this->parser->tagAttributes['target'] . ']');
-    }
-
-    /**
-     * handle <fn> tags (custom footnotes, see markdownify_extra::parseString()
-     * and markdownify_extra::_makeFootnotes())
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_fn()
-    {
-        if ($this->parser->isStartTag) {
-            $this->out('[^' . $this->parser->tagAttributes['name'] . ']:');
-            $this->setLineBreaks(1);
-        } else {
-            $this->setLineBreaks(2);
-        }
-        $this->indent('    ');
-    }
-
-    /**
-     * handle <footnotes> tag (custom footnotes, see markdownify_extra::parseString()
-     *  and markdownify_extra::_makeFootnotes())
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleTag_footnotes()
-    {
-        if (!$this->parser->isStartTag) {
-            $this->setLineBreaks(2);
-        }
-    }
-
-    /**
-     * parse a HTML string, clean up footnotes prior
-     *
-     * @param string $HTML input
-     * @return string Markdown formatted output
-     */
-    public function parseString($html)
-    {
-        /** TODO: custom markdown-extra options, e.g. titles & classes **/
-        // <sup id="fnref:..."><a href"#fn..." rel="footnote">...</a></sup>
-        // => <fnref target="..." />
-        $html = preg_replace('@<sup id="fnref:([^"]+)">\s*<a href="#fn:\1" rel="footnote">\s*\d+\s*</a>\s*</sup>@Us', '<fnref target="$1" />', $html);
-        // <div class="footnotes">
-        // <hr />
-        // <ol>
-        //
-        // <li id="fn:...">...</li>
-        // ...
-        //
-        // </ol>
-        // </div>
-        // =>
-        // <footnotes>
-        //   <fn name="...">...</fn>
-        //   ...
-        // </footnotes>
-        $html = preg_replace_callback('#<div class="footnotes">\s*<hr />\s*<ol>\s*(.+)\s*</ol>\s*</div>#Us', array(&$this, '_makeFootnotes'), $html);
-
-        return parent::parseString($html);
-    }
-
-    /**
-     * replace HTML representation of footnotes with something more easily parsable
-     *
-     * @note this is a callback to be used in parseString()
-     *
-     * @param array $matches
-     * @return string
-     */
-    protected function _makeFootnotes($matches)
-    {
-        // <li id="fn:1">
-        //   ...
-        //   <a href="#fnref:block" rev="footnote">&#8617;</a></p>
-        // </li>
-        // => <fn name="1">...</fn>
-        // remove footnote link
-        $fns = preg_replace('@\s*(&#160;\s*)?<a href="#fnref:[^"]+" rev="footnote"[^>]*>&#8617;</a>\s*@s', '', $matches[1]);
-        // remove empty paragraph
-        $fns = preg_replace('@<p>\s*</p>@s', '', $fns);
-        // <li id="fn:1">...</li> -> <footnote nr="1">...</footnote>
-        $fns = str_replace('<li id="fn:', '<fn name="', $fns);
-
-        $fns = '<footnotes>' . $fns . '</footnotes>';
-
-        return preg_replace('#</li>\s*(?=(?:<fn|</footnotes>))#s', '</fn>$1', $fns);
-    }
-
-    /**
-     * handle <a> tags parsing
-     *
-     * @param void
-     * @return void
-     */
-    protected function getCurrentCssSelector()
-    {
-        $cssSelector = '';
-        if (isset($this->parser->tagAttributes['id'])) {
-            $cssSelector .= '#' . $this->decode($this->parser->tagAttributes['id']);
-        }
-        if (isset($this->parser->tagAttributes['class'])) {
-            $classes = explode(' ', $this->decode($this->parser->tagAttributes['class']));
-            $classes = array_filter($classes);
-            $cssSelector .= '.' . join('.', $classes);
-        }
-        return $cssSelector;
-    }
-}
diff --git a/vendor/pixel418/markdownify/src/Parser.php b/vendor/pixel418/markdownify/src/Parser.php
deleted file mode 100644
index 90fcdf9f8..000000000
--- a/vendor/pixel418/markdownify/src/Parser.php
+++ /dev/null
@@ -1,564 +0,0 @@
-<?php
-
-/* This file is part of the Markdownify project, which is under LGPL license */
-
-namespace Markdownify;
-
-class Parser
-{
-    public static $skipWhitespace = true;
-    public static $a_ord;
-    public static $z_ord;
-    public static $special_ords;
-
-    /**
-     * tags which are always empty (<br /> etc.)
-     *
-     * @var array<string>
-     */
-    public $emptyTags = array(
-        'br',
-        'hr',
-        'input',
-        'img',
-        'area',
-        'link',
-        'meta',
-        'param',
-    );
-
-    /**
-     * tags with preformatted text
-     * whitespaces wont be touched in them
-     *
-     * @var array<string>
-     */
-    public $preformattedTags = array(
-        'script',
-        'style',
-        'pre',
-        'code',
-    );
-
-    /**
-     * supress HTML tags inside preformatted tags (see above)
-     *
-     * @var bool
-     */
-    public $noTagsInCode = false;
-
-    /**
-     * html to be parsed
-     *
-     * @var string
-     */
-    public $html = '';
-
-    /**
-     * node type:
-     *
-     * - tag (see isStartTag)
-     * - text (includes cdata)
-     * - comment
-     * - doctype
-     * - pi (processing instruction)
-     *
-     * @var string
-     */
-    public $nodeType = '';
-
-    /**
-     * current node content, i.e. either a
-     * simple string (text node), or something like
-     * <tag attrib="value"...>
-     *
-     * @var string
-     */
-    public $node = '';
-
-    /**
-     * wether current node is an opening tag (<a>) or not (</a>)
-     * set to NULL if current node is not a tag
-     * NOTE: empty tags (<br />) set this to true as well!
-     *
-     * @var bool | null
-     */
-    public $isStartTag = null;
-
-    /**
-     * wether current node is an empty tag (<br />) or not (<a></a>)
-     *
-     * @var bool | null
-     */
-    public $isEmptyTag = null;
-
-    /**
-     * tag name
-     *
-     * @var string | null
-     */
-    public $tagName = '';
-
-    /**
-     * attributes of current tag
-     *
-     * @var array (attribName=>value) | null
-     */
-    public $tagAttributes = null;
-
-    /**
-     * whether or not the actual context is a inline context
-     *
-     * @var bool | null
-     */
-    public $isInlineContext = null;
-
-    /**
-     * whether the current tag is a block element
-     *
-     * @var bool | null
-     */
-    public $isBlockElement = null;
-
-    /**
-     * whether the previous tag (browser) is a block element
-     *
-     * @var bool | null
-     */
-    public $isNextToInlineContext = null;
-
-    /**
-     * keep whitespace
-     *
-     * @var int
-     */
-    public $keepWhitespace = 0;
-
-    /**
-     * list of open tags
-     * count this to get current depth
-     *
-     * @var array
-     */
-    public $openTags = array();
-
-    /**
-     * list of block elements
-     *
-     * @var array
-     * TODO: what shall we do with <del> and <ins> ?!
-     */
-    public $blockElements = array(
-        // tag name => <bool> is block
-        // block elements
-        'address' => true,
-        'blockquote' => true,
-        'center' => true,
-        'del' => true,
-        'dir' => true,
-        'div' => true,
-        'dl' => true,
-        'fieldset' => true,
-        'form' => true,
-        'h1' => true,
-        'h2' => true,
-        'h3' => true,
-        'h4' => true,
-        'h5' => true,
-        'h6' => true,
-        'hr' => true,
-        'ins' => true,
-        'isindex' => true,
-        'menu' => true,
-        'noframes' => true,
-        'noscript' => true,
-        'ol' => true,
-        'p' => true,
-        'pre' => true,
-        'table' => true,
-        'ul' => true,
-        // set table elements and list items to block as well
-        'thead' => true,
-        'tbody' => true,
-        'tfoot' => true,
-        'td' => true,
-        'tr' => true,
-        'th' => true,
-        'li' => true,
-        'dd' => true,
-        'dt' => true,
-        // header items and html / body as well
-        'html' => true,
-        'body' => true,
-        'head' => true,
-        'meta' => true,
-        'link' => true,
-        'style' => true,
-        'title' => true,
-        // unfancy media tags, when indented should be rendered as block
-        'map' => true,
-        'object' => true,
-        'param' => true,
-        'embed' => true,
-        'area' => true,
-        // inline elements
-        'a' => false,
-        'abbr' => false,
-        'acronym' => false,
-        'applet' => false,
-        'b' => false,
-        'basefont' => false,
-        'bdo' => false,
-        'big' => false,
-        'br' => false,
-        'button' => false,
-        'cite' => false,
-        'code' => false,
-        'del' => false,
-        'dfn' => false,
-        'em' => false,
-        'font' => false,
-        'i' => false,
-        'img' => false,
-        'ins' => false,
-        'input' => false,
-        'iframe' => false,
-        'kbd' => false,
-        'label' => false,
-        'q' => false,
-        'samp' => false,
-        'script' => false,
-        'select' => false,
-        'small' => false,
-        'span' => false,
-        'strong' => false,
-        'sub' => false,
-        'sup' => false,
-        'textarea' => false,
-        'tt' => false,
-        'var' => false,
-    );
-
-    /**
-     * get next node, set $this->html prior!
-     *
-     * @param void
-     * @return bool
-     */
-    public function nextNode()
-    {
-        if (empty($this->html)) {
-            // we are done with parsing the html string
-
-            return false;
-        }
-
-        if ($this->isStartTag && !$this->isEmptyTag) {
-            array_push($this->openTags, $this->tagName);
-            if (in_array($this->tagName, $this->preformattedTags)) {
-                // dont truncate whitespaces for <code> or <pre> contents
-                $this->keepWhitespace++;
-            }
-        }
-
-        if ($this->html[0] == '<') {
-            $token = substr($this->html, 0, 9);
-            if (substr($token, 0, 2) == '<?') {
-                // xml prolog or other pi's
-                /** TODO **/
-                // trigger_error('this might need some work', E_USER_NOTICE);
-                $pos = strpos($this->html, '>');
-                $this->setNode('pi', $pos + 1);
-
-                return true;
-            }
-            if (substr($token, 0, 4) == '<!--') {
-                // comment
-                $pos = strpos($this->html, '-->');
-                if ($pos === false) {
-                    // could not find a closing -->, use next gt instead
-                    // this is firefox' behaviour
-                    $pos = strpos($this->html, '>') + 1;
-                } else {
-                    $pos += 3;
-                }
-                $this->setNode('comment', $pos);
-
-                static::$skipWhitespace = true;
-
-                return true;
-            }
-            if ($token == '<!DOCTYPE') {
-                // doctype
-                $this->setNode('doctype', strpos($this->html, '>') + 1);
-
-                static::$skipWhitespace = true;
-
-                return true;
-            }
-            if ($token == '<![CDATA[') {
-                // cdata, use text node
-
-                // remove leading <![CDATA[
-                $this->html = substr($this->html, 9);
-
-                $this->setNode('text', strpos($this->html, ']]>') + 3);
-
-                // remove trailing ]]> and trim
-                $this->node = substr($this->node, 0, -3);
-                $this->handleWhitespaces();
-
-                static::$skipWhitespace = true;
-
-                return true;
-            }
-            if ($this->parseTag()) {
-                // seems to be a tag
-                // handle whitespaces
-                if ($this->isBlockElement) {
-                    static::$skipWhitespace = true;
-                } else {
-                    static::$skipWhitespace = false;
-                }
-
-                return true;
-            }
-        }
-        if ($this->keepWhitespace) {
-            static::$skipWhitespace = false;
-        }
-        // when we get here it seems to be a text node
-        $pos = strpos($this->html, '<');
-        if ($pos === false) {
-            $pos = strlen($this->html);
-        }
-        $this->setNode('text', $pos);
-        $this->handleWhitespaces();
-        if (static::$skipWhitespace && $this->node == ' ') {
-            return $this->nextNode();
-        }
-        $this->isInlineContext = true;
-        static::$skipWhitespace = false;
-
-        return true;
-    }
-
-    /**
-     * parse tag, set tag name and attributes, see if it's a closing tag and so forth...
-     *
-     * @param void
-     * @return bool
-     */
-    protected function parseTag()
-    {
-        if (!isset(static::$a_ord)) {
-            static::$a_ord = ord('a');
-            static::$z_ord = ord('z');
-            static::$special_ords = array(
-                ord(':'), // for xml:lang
-                ord('-'), // for http-equiv
-            );
-        }
-
-        $tagName = '';
-
-        $pos = 1;
-        $isStartTag = $this->html[$pos] != '/';
-        if (!$isStartTag) {
-            $pos++;
-        }
-        // get tagName
-        while (isset($this->html[$pos])) {
-            $pos_ord = ord(strtolower($this->html[$pos]));
-            if (($pos_ord >= static::$a_ord && $pos_ord <= static::$z_ord) || (!empty($tagName) && is_numeric($this->html[$pos]))) {
-                $tagName .= $this->html[$pos];
-                $pos++;
-            } else {
-                $pos--;
-                break;
-            }
-        }
-
-        $tagName = strtolower($tagName);
-        if (empty($tagName) || !isset($this->blockElements[$tagName])) {
-            // something went wrong => invalid tag
-            $this->invalidTag();
-
-            return false;
-        }
-        if ($this->noTagsInCode && end($this->openTags) == 'code' && !($tagName == 'code' && !$isStartTag)) {
-            // we supress all HTML tags inside code tags
-            $this->invalidTag();
-
-            return false;
-        }
-
-        // get tag attributes
-        /** TODO: in html 4 attributes do not need to be quoted **/
-        $isEmptyTag = false;
-        $attributes = array();
-        $currAttrib = '';
-        while (isset($this->html[$pos + 1])) {
-            $pos++;
-            // close tag
-            if ($this->html[$pos] == '>' || $this->html[$pos] . $this->html[$pos + 1] == '/>') {
-                if ($this->html[$pos] == '/') {
-                    $isEmptyTag = true;
-                    $pos++;
-                }
-                break;
-            }
-
-            $pos_ord = ord(strtolower($this->html[$pos]));
-            if (($pos_ord >= static::$a_ord && $pos_ord <= static::$z_ord) || in_array($pos_ord, static::$special_ords)) {
-                // attribute name
-                $currAttrib .= $this->html[$pos];
-            } elseif (in_array($this->html[$pos], array(' ', "\t", "\n"))) {
-                // drop whitespace
-            } elseif (in_array($this->html[$pos] . $this->html[$pos + 1], array('="', "='"))) {
-                // get attribute value
-                $pos++;
-                $await = $this->html[$pos]; // single or double quote
-                $pos++;
-                $value = '';
-                while (isset($this->html[$pos]) && $this->html[$pos] != $await) {
-                    $value .= $this->html[$pos];
-                    $pos++;
-                }
-                $attributes[$currAttrib] = $value;
-                $currAttrib = '';
-            } else {
-                $this->invalidTag();
-
-                return false;
-            }
-        }
-        if ($this->html[$pos] != '>') {
-            $this->invalidTag();
-
-            return false;
-        }
-
-        if (!empty($currAttrib)) {
-            // html 4 allows something like <option selected> instead of <option selected="selected">
-            $attributes[$currAttrib] = $currAttrib;
-        }
-        if (!$isStartTag) {
-            if (!empty($attributes) || $tagName != end($this->openTags)) {
-                // end tags must not contain any attributes
-                // or maybe we did not expect a different tag to be closed
-                $this->invalidTag();
-
-                return false;
-            }
-            array_pop($this->openTags);
-            if (in_array($tagName, $this->preformattedTags)) {
-                $this->keepWhitespace--;
-            }
-        }
-        $pos++;
-        $this->node = substr($this->html, 0, $pos);
-        $this->html = substr($this->html, $pos);
-        $this->tagName = $tagName;
-        $this->tagAttributes = $attributes;
-        $this->isStartTag = $isStartTag;
-        $this->isEmptyTag = $isEmptyTag || in_array($tagName, $this->emptyTags);
-        if ($this->isEmptyTag) {
-            // might be not well formed
-            $this->node = preg_replace('# */? *>$#', ' />', $this->node);
-        }
-        $this->nodeType = 'tag';
-        $this->isBlockElement = $this->blockElements[$tagName];
-        $this->isNextToInlineContext = $isStartTag && $this->isInlineContext;
-        $this->isInlineContext = !$this->isBlockElement;
-        return true;
-    }
-
-    /**
-     * handle invalid tags
-     *
-     * @param void
-     * @return void
-     */
-    protected function invalidTag()
-    {
-        $this->html = substr_replace($this->html, '&lt;', 0, 1);
-    }
-
-    /**
-     * update all vars and make $this->html shorter
-     *
-     * @param string $type see description for $this->nodeType
-     * @param int $pos to which position shall we cut?
-     * @return void
-     */
-    protected function setNode($type, $pos)
-    {
-        if ($this->nodeType == 'tag') {
-            // set tag specific vars to null
-            // $type == tag should not be called here
-            // see this::parseTag() for more
-            $this->tagName = null;
-            $this->tagAttributes = null;
-            $this->isStartTag = null;
-            $this->isEmptyTag = null;
-            $this->isBlockElement = null;
-
-        }
-        $this->nodeType = $type;
-        $this->node = substr($this->html, 0, $pos);
-        $this->html = substr($this->html, $pos);
-    }
-
-    /**
-     * check if $this->html begins with $str
-     *
-     * @param string $str
-     * @return bool
-     */
-    protected function match($str)
-    {
-        return substr($this->html, 0, strlen($str)) == $str;
-    }
-
-    /**
-     * truncate whitespaces
-     *
-     * @param void
-     * @return void
-     */
-    protected function handleWhitespaces()
-    {
-        if ($this->keepWhitespace) {
-            // <pre> or <code> before...
-
-            return;
-        }
-        // truncate multiple whitespaces to a single one
-        $this->node = preg_replace('#\s+#s', ' ', $this->node);
-    }
-
-    /**
-     * normalize self::node
-     *
-     * @param void
-     * @return void
-     */
-    protected function normalizeNode()
-    {
-        $this->node = '<';
-        if (!$this->isStartTag) {
-            $this->node .= '/' . $this->tagName . '>';
-
-            return;
-        }
-        $this->node .= $this->tagName;
-        foreach ($this->tagAttributes as $name => $value) {
-            $this->node .= ' ' . $name . '="' . str_replace('"', '&quot;', $value) . '"';
-        }
-        if ($this->isEmptyTag) {
-            $this->node .= ' /';
-        }
-        $this->node .= '>';
-    }
-}