Remove __melange_queries logging
It causes the local instance to become very slow, as it has to pickle
all queries. A better solution would be to store them in the per
request value store and then add middleware to store that data at
end-of-request.
"""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