Add org ReferenceProperty to Administrator model (many:1 relationship associating Administrators with specific Organization). Update Organization model __doc__ string with information about the back-reference 'admins'.
Patch by: Pawel Solyga
Review by: to-be-reviewed
class_prepared = object()
pre_init= object()
post_init = object()
pre_save = object()
post_save = object()
pre_delete = object()
post_delete = object()
post_syncdb = object()