tornevalls-resurs-bank-payment-gateway-for-woocommerce

Pull request #32: RWC-43 + RWC-42: getAddress forms.

Merge in WWW/tornevall-networks-resurs-bank-payment-gateway-for-woocommerce from features/RWC-43-getAddress to master

* commit '6fb3686b5ef8293443d3f1451cee81ae01c4214f':
  docblock description added
  Admin and notes.
  Error handling is not useful in this method as we use another errorhandler for getAddress problems. And we need to show customer errors when something goes wrong in that session.
  getAddress for Sweden and Norway implemented. Using session data to temporarily store customer type etc.
  This task is actually a filter based variant but includes RWC-42.
  RWC-43: Preparing for getAddress forms.