Shopify/active_merchant — pull request #648 by carlaares (2013-04-03 17:46:42+00:00)
Title: MeS with recurring and client reference number support. Also Catch a network error exeception

Catch 404 not found error from MeS if URL is wrong because of MeS system issue. Also adding client_reference_number on each operation for MeS and allowing recurring operations