BUG - fix for whitescreen/too many thumbs in collections max view. Limit it to max_collection_thumbs

git-svn-id: http://svn.montala.net/svn/resourcespace@5070 c08608d7-6e46-0410-86ca-f2a6f1370df5
BUG - disable sorting in collections panel if result set exceeds max_collection_thumbs

git-svn-id: http://svn.montala.net/svn/resourcespace@5071 c08608d7-6e46-0410-86ca-f2a6f1370df5