iATSPayments/PHP — pull request #17 by ruscoe (2014-05-08 19:11:01+00:00)
Title: Canadian dollars now represented as CAD, not CDN.

As identified in issue #15, CAD is the correct representation of Canadian dollars, not CDN.

This is consistent with the [iATS API docs](http://home.iatspayments.com/sites/default/files/iats_webservices_processlink_version_4.0.pdf) section 1.4.3.