Updates js versions.

index.html

     <script src="estos_log.js?v=2"></script><!-- simple stanza logger -->
     <script src="desktopsharing.js?v=2"></script><!-- desktop sharing -->
     <script src="data_channels.js?v=1"></script><!-- data channels -->
-    <script src="app.js?v=27"></script><!-- application logic -->
+    <script src="app.js?v=28"></script><!-- application logic -->
     <script src="chat.js?v=5"></script><!-- chat logic -->
-    <script src="util.js?v=4"></script><!-- utility functions -->
+    <script src="util.js?v=5"></script><!-- utility functions -->
     <script src="etherpad.js?v=8"></script><!-- etherpad plugin -->
     <script src="prezi.js?v=4"></script><!-- prezi plugin -->
     <script src="smileys.js?v=2"></script><!-- smiley images -->
     <script src="moderatemuc.js?v=3"></script><!-- moderator plugin -->
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <script src="rtp_stats.js?v=1"></script><!-- RTP stats processing -->
-    <script src="videolayout.js?v=1"></script><!-- video ui -->
+    <script src="videolayout.js?v=2"></script><!-- video ui -->
     <script src="toolbar.js?v=1"></script><!-- toolbar ui -->
     <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet">
     <link rel="stylesheet" href="css/font.css"/>
     <link rel="stylesheet" type="text/css" media="screen" href="css/main.css?v=20"/>
-    <link rel="stylesheet" type="text/css" media="screen" href="css/videolayout_default.css?v=4" id="videolayout_default"/>
+    <link rel="stylesheet" type="text/css" media="screen" href="css/videolayout_default.css?v=5" id="videolayout_default"/>
     <link rel="stylesheet" href="css/jquery-impromptu.css?v=4">
     <link rel="stylesheet" href="css/modaldialog.css?v=3">
-    <link rel="stylesheet" href="css/popup_menu.css?v=1">
+    <link rel="stylesheet" href="css/popup_menu.css?v=2">
     <link rel="stylesheet" href="css/popover.css?v=1">
     <!--
         Link used for inline installation of chrome desktop streaming extension,