Update FormView for 1.9.
Update FormView for 1.9.

See the below from the Django documentation for more info:

> "Form initialization was moved from the ProcessFormView.get() method to
the new FormMixin.get_context_data() method. This may be backwards
incompatible if you have overridden the get_context_data() method
without calling super()."

https://docs.djangoproject.com/en/2.0/releases/1.9/#miscellaneous

DemocracyClub/yournextrepresentative,DemocracyClub/yournextrepresentative,DemocracyClub/yournextrepresentative