Replace Mardown parser by another one to be able to disallow markup or entities

vendor/Michelf/MarkdownInterface.inc.php

@@ -0,0 +1,9 @@
+<?php
+
+# Use this file if you cannot use class autoloading. It will include all the
+# files needed for the MarkdownInterface interface.
+#
+# Take a look at the PSR-0-compatible class autoloading implementation
+# in the Readme.php file if you want a simple autoloader setup.
+
+require_once dirname(__FILE__) . '/MarkdownInterface.php';