Implement doPayment instead of doTransferCheckout #114
Created by: artfulrobot
I believe this fixes #114 (closed) Tests don't cover this, but they do still pass :-)
- Implement doPayment and remove doTransferCheckout (and doDirectPayment)
- change name of an internal method to something more obvious (doTransferCheckoutWorker → createRedirectFlowURL)
Does it look ok to you, @mattwire ?