Global Payments Gateway
----------------------
A Payment gateway for Global Payments (formerly called Realex Payments).  To use
this module you will need to have an account set up with Global Payments and
have received a shared key as well as a merchant ID. Global Payments have the
requirement that you initially use the account in test mode to make sure that
the process works.

Test cards available at
https://developer.realexpayments.com/#!/technical-resources/test-card

Installation
------------
 - Download and enable the module
 - Go to the payment methods settings page at admin/commerce/config/payment-gateways
 - Select "Add Payment Gateway" and add the Global Payments details