Merge branch 'wiki-draw-io'

Wiki draw io is now correctly explained to be installed sucessfully.

Guides/wiki.md

@@ -105,6 +105,22 @@ _todo_
 
 _todo_
 
+## Extensions
+
+### Draw.io
+
+[Extension:DrawioEditor](https://www.mediawiki.org/wiki/Extension:DrawioEditor)
+
+```
+cd /var/www/mediawiki/extensions/
+
+sudo git clone https://github.com/mgeb/mediawiki-drawio-editor DrawioEditor
+
+sudo git clone https://github.com/p12tic/NativeSvgHandler.git
+```
+
+**Fix SVG upload** : add `http://www.w3.org/1999/xhtml` in `/var/www/mediawiki/includes/upload/UploadBase.php`.
+
 ## Uninstall Mediawiki
 
 ### Disable site

Install/Templates/mediawiki/LocalSettings.php

@@ -152,3 +152,8 @@ $wgSessionCacheType = CACHE_DB;
 
 # Add file extensions
 $wgFileExtensions = array('ppt', 'pptx', 'pdf', 'doc', 'docx', 'odt', 'odp', 'xml', 'json');
+
+# Enable extensions
+require_once "$IP/extensions/DrawioEditor/DrawioEditor.php";
+require_once "$IP/extensions/NativeSvgHandler/NativesSvgHandler.php";
+