Hide 'tos' pull-down selector from Program profile forms. Until a way to select Documents for use as the Terms of Service for a Program exists (see http://code.google.com/p/soc/issues/detail?id=151), there is no point in hacking in scope_path and link_id fields here. The per-Program ToS feature will just be unavailable until an appropriate Document selector exists. 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