Shopify/active_merchant — pull request #1399 by shulmang (2014-09-29 18:46:47+00:00)
Title: Mercury gateway updates

These are changes to the Mercury Gateway needed to pass a recent Mercury integration certification. The Mercury Developer Integrations representative I worked with for the certification was Michael Mantineo, mmantineo@mercurypay.com. The changes included in this PR are:

* when parsing mercury response if ref_no is not present use invoice_no for ref_no

* include AcqRefData for PreAuthCapture as well as reversal

* default to partial auth deny