syncdb and south
CommandError: One or more models did not validate: notifier.userprefs: 'user' defines a relation with the model 'auth.User', which has been swapped out. Update the relation to point at settings.AUTH_USER_MODEL. notifier.sentnotification: 'user' defines a relation with the model 'auth.User', which has been swapped out. Update the relation to point at settings.AUTH_USER_MODEL.