FIX Users can now manually recreate previews when using $preview_generate_max_file_size


git-svn-id: http://svn.resourcespace.org/svn/resourcespace@5481 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX - revert revision 5419 as it broke smart collection titles

git-svn-id: http://svn.resourcespace.org/svn/resourcespace@5482 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX revert 5456 as it broke all sorting on collections

git-svn-id: http://svn.resourcespace.org/svn/resourcespace@5483 c08608d7-6e46-0410-86ca-f2a6f1370df5