WIP enumerated controller and tests
Merge branch 'develop' of github.com:MetadataRegistry/ModelCataloguePlugin into develop
EnumeratedType Controller, Marshaller and Spec.
Merge branch 'develop' of github.com:MetadataRegistry/ModelCataloguePlugin into develop

Conflicts:
	ModelCatalogueCorePlugin/test/unit/uk/co/mc/core/AbstractRestfulControllerSpec.groovy