Fixing bugs in control script behavior.
Rearchitected service invocation logic to add REST API support and future support for streaming.
Merge branch 'rest'
Restructured service invocation some more, and removed stray reference to "response" (should have been "result").
Implemented "restful" decorator; removed restrictions on which HTTP verbs are supported in REST services.

Closes #115.
Merge branch 'restful-decorator'