CodeNarc research comments
Space before open brace where appropriate

The codenarc rule SpaceBeforeOpeningBrace needs some work to allow cases like these:
call({ go() }, 4)
[{ okie() }, { dokie() }]
Refactored InstanceController allowed methods syntax
Required all instance mutation calls to be POST requests
Standardized whitespace
Merge branch 'code-style-and-rest-api-restriction'

* code-style-and-rest-api-restriction:
  Standardized whitespace
  Required all instance mutation calls to be POST requests
  Refactored InstanceController allowed methods syntax
  Space before open brace where appropriate
  CodeNarc research comments

Conflicts:
	test/unit/com/netflix/asgard/SecurityCreateCommandTests.groovy