only cosmetics
add initial support for payer side invoice page
added email field to pinvoice page
added support for PROCESSED order state in WidgetController
modified PnotificationsController in accordance with DB changes
removed unnecessary routes to pages in the Papp view
includes the following modifications to the payer side:
1. added support and dedicated view for freemium products
2. corrected issues with order state transitions
3. add optional ResURL to the PGW POST parameters
fix pgw_in_notifications and merchant_out_notifications tables - add order_id column
routine ekoloko.html SDKID update
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/controllers/papp_controller.rb - resolved
	app/views/static/ekoloko.html.erb - SDKID routine issue