Updates css version.

index.html

     <script src="estos_log.js?v=2"></script><!-- simple stanza logger -->
     <script src="app.js?v=11"></script><!-- application logic -->
     <link href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet">
-    <link rel="stylesheet" type="text/css" media="screen" href="css/main.css?v=11"/>
+    <link rel="stylesheet" type="text/css" media="screen" href="css/main.css?v=12"/>
     <link rel="stylesheet" href="css/jquery-impromptu.css?v=3">
     <link rel="stylesheet" href="css/modaldialog.css?v=3">
     <script src="libs/jquery-impromptu.js"></script>