WEB-interface has been rebuilt.

web_interface/Gruntfile.js

@@ -1,4 +1,4 @@
-var src_folders = ['wui-3', 'wui-3-rt', 'wui-7', 'wui-9', 'wui-9-mts', 'wui-10', 'wui-11', 'upload'];
+var src_folders = ['wui-3', 'wui-3-rt', 'wui-7', 'wui-9', 'wui-9-mts', 'wui-10', 'wui-11', 'wui-21', 'upload'];
 
 var cssminConf = function() {
   var conf = {};