WordPress Coding Standards optimization.
Added an listener for Ogone.
No longer set the transaction ID.
Use the payment ID as Ogone order ID and adjusted the listener to this.
Removed some whitespace.
Updated Simulator test data.
Don't redirect in the listener.
Move Gravity Forms config meta box to the 'admin' folder.
Added support for the Gravity Forms AWeber Add-On.
Getting ready for version 2.8.0.
Test - Shopp - Tested up to version 1.3.4.
Merge branch 'release/2.8.0'