Changed this file to make sure that a user can delete and admin perms onfiles they upload via the file-storage UI. Previously if you only hadwrite privs on a folder, you couldn't delete or admin privs on your ownfiles uploaded to the folder.
You can once again mount/dismount subsites and delete of subsite works inthe simple case (i.e. when you've deleted everything you've added to itvia the site map or group/user/relseg admin UI)