Add list_helpers functions that are going to be used when rendering list views like (Users List, Sponsors List etc).
Add list default templates and CSS classes.
Patch by: Pawel Solyga
Reviewed 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)"""