Add features to support partner referred questions

* user has referred_partner_info
* when coming from referring partner hosted widget do the following:
  + simplify locator view to focus on asking questions to electeds
  + set question title and body if passed in
  + set user.referred_partner_info if passed in

Supports opengovernment/product#96
Parse submitted address for user if from partner

* also fixed some issues with referring_partner_info & question
  populating

Supports opengovernment/product#96