* Moving plugins infrastructure to edx-django-utils This PR extracts the code that enables plugins in edx-platform and puts it in edx-django-utils. This is done to allow other IDAS to add plugin functionality.
2to3 -f future . -w
This will remove imports from __future__ that are no longer needed. https://docs.python.org/3.5/library/2to3.html#2to3fixer-future
Run python-modernize -w openedx/core/djangoapps/plugins
