Added columns to the manage project page that show the amount of evaluations.
The total possible amount of evaluations that is shown is based on surveys which have at least one Record.
"""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