themes lib MDL-24895 Multiple fixes to better handle overflow.

Major tasks undertaken in this patch:
* New format_text argument, overflowdiv.
* New page layout Report.
* Review of all format_text calls.
* Added support for the report layout to all themes.
* Changed forum post display from tables to divs.

blocks/rss_client/block_rss_client.php

@@ -185,7 +185,7 @@
         }
 
 
-        $r.='<ul class="list">'."\n";
+        $r.='<ul class="list no-overflow">'."\n";
 
         $feeditems = $feed->get_items(0, $maxentries);
         foreach($feeditems as $item){