FIX - css for whitegry list view headers. hover should not change the bg color

git-svn-id: http://svn.montala.net/svn/resourcespace@4909 c08608d7-6e46-0410-86ca-f2a6f1370df5
increment css reload key

git-svn-id: http://svn.montala.net/svn/resourcespace@4910 c08608d7-6e46-0410-86ca-f2a6f1370df5