[FEATURE] Add ripple rest payment response object spec.
[TASK] Rebase onto develop
[TASK] Remove unused build_payment, send_payment.
[FEATURE] Extract Outgoing Payment Processor.
[FEATURE] Extract OutgoingPayment.
[TASK] Complete refactor of Outgoing Payment.
[TEST] Spec OutgoingPayment and refactor implementation to pass!
[TASK] Add comma to fix package.json
[FEATURE] Handle error getting ripple address.
[TASK] Update OutgoingPaymentProcessor to use new method.
[DOC] Better logging statement.
[TASK] Readd deposit callback job.
Merge pull request #149 from ripple/ripple-rest-payment-response

Looks good to me.