Shopify/active_merchant — pull request #1480 by ivanfer (2014-12-04 16:38:30+00:00)
Title: QuickBooks Payments 

WIP to udpate quickbooks payments .

Basic integration is complete, items remaining:
- [ ] update integration to authenticate via OAuth
- [ ] authentication testing
- [ ] remote tests for Quickbooks
- [ ] some unit tests

Worth looking into how to generalize OAuth for use by all gateways.