A quick-and-dirty way to create non-link sub-menu dividers, plus a TODO on
how this should be formalizes to not be so hacky.
This change was inspired by the ever-growing "Site" sidebar menu.
Patch by: Todd larsen
Review 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