Shopify/active_merchant — pull request #941 by odorcicd (2013-12-06 04:30:25+00:00)
Title: Refactor IPay88 to follow correct integration using Notification

@melari @bizla

A Return doesn't work with the flow we have at Shopify. I've changed IPay88 to include a Notification class which the Return class references, like many of the other integration implementations.