FEA: creating return process
FEA: returning of items finished up to the point of printing (will generate a pdf)
REF: Reorganization of compliance tests

Added line_payments
Added orders of type RETURN and CREDIT_NOTE
Merge branch 'master' of https://github.com/aburone/titi

Conflicts:
	controllers/sales/returns.rb
	features/make_return.feature
	features/make_return.rb
	features/support/paths.rb
	locales/es.yml
	models/order.rb
	test/test_order.rb
	views/returns.slim
Stupid merge