FIX - removed backslashes in langs caused plupload to bomb. Use escape_check instead

git-svn-id: http://svn.montala.net/svn/resourcespace@5299 c08608d7-6e46-0410-86ca-f2a6f1370df5
BUG - removed search view admin ratings column if $ratings_field is not set. Also updated config.default.php as seems to be no reference to this option

git-svn-id: http://svn.montala.net/svn/resourcespace@5300 c08608d7-6e46-0410-86ca-f2a6f1370df5