Fixed a bug in the handling of multiple charges to the same customer
Correctly calculates PP Express discounts for non-decimal currencies
Merge pull request #771 from Shopify/fix-paypal-non-decimal-discounts

Correctly calculate PayPal Express discounts for non-fractional currencies
PaymentExpress: Return token in authorization

In keeping with the standard #store API this makes PaymentExpress return
the token in the Response#authorization field. The custom Response#token
method has been left in place for backwards compatibility.
Capture method of NAB Transact gw should support options param
Stripe: Add ability to refund a partial application fee.
Fix webpay test failures caused by stripe changes.
Stripe: return the failing result if the refund is successful, but the application fee fails.
Use MultiResponse for issuing refunds with application fees
Add stripe unit test for refund with refund_fee_amount passed in
Remove variable assignment when passing in meta options
Add Stripe tests for unsuccessful refunds at each potential failure step
Merge pull request #786 from Shopify/stripe-partial-application-fee-refund

Stripe partial application fee refund
Added support for iPay88 integration
Swap service_url and entry_url to play nice with ActiveMerchant's payment_service_for view helper
swap entry and service url.
Ipay88 comment cleanup.
Bump for release v1.36.0
Fix argument passing in NAB gw
credentials are not set as class variables, change to pass the merchant key into initialize