Revert "Use our version of django-popolo with Python 3-compatible migrations"
Revert "Use our version of django-popolo with Python 3-compatible migrations"

This reverts commit 543f0b5845fd3eb0a5967cf92584819675568741.

# Conflicts:
#	requirements.txt

neavouli/yournextrepresentative,neavouli/yournextrepresentative,neavouli/yournextrepresentative,neavouli/yournextrepresentative,neavouli/yournextrepresentative