longer requires the Payflow Pro SDK. Thanks to Phil Lobbes for this great
work.
+The Payflow API that this module interfaces with is not yet an officially
+supported service and is still subject to change. At this time, you need to
+contact payflowintegrator@paypal.com for a certification ID to connect and run
+transactions using this module.
+
Based on Business::OnlinePayment::AuthorizeNet written by Jason Kohles.
Currently maintained by Ivan Kohler <ivan-payflowpro@420.am> and Phil Lobbes
<phil at perkpartners.com>.