fixes #3338 - grey out VM form when editing is not supported
Merge branch '959' into develop
fixes #3577 - do not treat `params[:dryrun]` with value `false` as true
fixes #3566 - exposes orchestration tasks via the API(v2) at /api/orchestration/id/tasks
fixes #3578 - minor SQL and whitespaces updates to the smart proxy class
fixes #3581 - link to reports search for failed hosts should use "host = foo.example"
print an error on invalid json vs 500 error