CHG checkmail lang

git-svn-id: http://svn.resourcespace.org/svn/resourcespace@5457 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX collection_edit_previews failed on videos because ref referred to collection

git-svn-id: http://svn.resourcespace.org/svn/resourcespace@5458 c08608d7-6e46-0410-86ca-f2a6f1370df5
ADD hook replaceresourceistranscoding

git-svn-id: http://svn.resourcespace.org/svn/resourcespace@5459 c08608d7-6e46-0410-86ca-f2a6f1370df5