Various improvements to the generic View code
Among others:
* Added the 'page' argument to the simple.errorResponse call
* Pass the result of getEmptyKeyFields to edit() in create()
* Fix typo's in error responses
* Fixed a todo to properly redirect on create
* Made editPost return something when the form is not valid
* Added an _editGet hook
Patch by: Sverre Rabbelier
Reviewed by: to-be-reviewed
"""Multi-consumer multi-producer dispatching mechanism
Originally based on pydispatch (BSD) http://pypi.python.org/pypi/PyDispatcher/2.0.1
See license.txt for original license.
Heavily modified for Django's purposes.
"""
from django.dispatch.dispatcher import Signal