Couple of changes:

- Per Nacin's suggestion, we are overiding the current dashboard with dashboard-override.php
- Couple of CSS tweaks to Kelly's Right now changes.  Changed name of that widget to "Site Content".  Removed clear divs
- Removed unused dashboard files



git-svn-id: https://plugins.svn.wordpress.org/dashboard/trunk@779738 b8457f37-d9ea-0310-8a92-e5e31aec5664