Major refactor of the access module
The first step to sanity is a leap into the unknown? Create an object
to represent the access checks for each module instead of a bunch of
loose functions.
Converted all views and params.py to use the new access checker.
Main differences:
* arguments to a checker can be passed by using a tuple
* checkers are referenced by string, rather than directly
* the Checker constructor handles merging with child views
Patch by: Sverre Rabbelier
"""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