Added dummy payment plugin for incremental development
Redesigned payment workflow and added resources
Merge branch 'master' into payment
Changed order table name to avoid SQL reserved keywords
Added paymentComplete action and routing
Added primitive payment frontend implementation and demo code
Created DummyFailureType and DummyFailurePlugin for testing and demo purposes
Added some tests for payment controller
Removed a meaningless test
Dummy payment plugins are no longer active in prod environment
Fixed order fixture loader to properly use assigned order number
Removed GET restrictions on payment controller
Implemented more payment controller tests
Merge branch 'payment'