Change admin config view per admin redesign in 1.3

Fix admin views_decorator.rb

Remove manage store credits text

Update promo partial and add preference_amount as attr_accessible (per the rails 3.2 security update)
Update consume_users_credit hook to work with Spree 1.2+ [fix #26]
Fix consuming user credits upon completion.
Fix missing closing tag.
Prevents method from being created twice in production.
Removes extra comma
Removes problematic helper
Removes process_payments! method from decorator
Merge branch '1-3-stable'

Conflicts:
	app/models/spree/order_decorator.rb
	app/models/spree/promotion/actions/give_store_credit.rb
	app/overrides/views_decorator.rb
	app/views/spree/admin/promotions/actions/_give_store_credit.html.erb