Update some of the URL patterns to get their link_name parsing from the new patterns in key_name.py. (Using it like this in urls.py is why key_name.py needs to not depend on other modules...)

class_prepared = object()

pre_init= object()
post_init = object()

pre_save = object()
post_save = object()

pre_delete = object()
post_delete = object()

post_syncdb = object()