Moved clean_club_app_link_id to cleaning.
This method is now also used by the club create_form. Which means that you cannot create a new club with an already reserved link_id until the club application has been rejected.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
from django.dispatch import Signal
class_prepared = Signal(providing_args=["class"])
pre_init = Signal(providing_args=["instance", "args", "kwargs"])
post_init = Signal(providing_args=["instance"])
pre_save = Signal(providing_args=["instance", "raw"])
post_save = Signal(providing_args=["instance", "raw", "created"])
pre_delete = Signal(providing_args=["instance"])
post_delete = Signal(providing_args=["instance"])
post_syncdb = Signal(providing_args=["class", "app", "created_models", "verbosity", "interactive"])