Release update for new model controllers

1.8.5.1

Updated version to include new controllers

Update for Akamai URL endpoints release

1.8.5

Updated gem version

June 2015 SDK Release

This release contains support for Visa Checkout as well as fixing many community issues.

Dec14 release

Added support for: ApplePay, PayPal, Consolidated accounts
Community fixes
Travis-CI

Updated to match the latest API Release

Including new method for ARBGetSubscriptionList()