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
"""Error types for dispatcher mechanism
"""
class DispatcherError(Exception):
"""Base class for all Dispatcher errors"""
class DispatcherKeyError(KeyError, DispatcherError):
"""Error raised when unknown (sender,signal) set specified"""
class DispatcherTypeError(TypeError, DispatcherError):
"""Error raised when inappropriate signal-type specified (None)"""