not all functional test options were handled.

related to: https://github.com/grails/grails-core/pull/451
GRAILS-11211 - missing namespaces in mappings for singular RESTful resource corrected, typo in method name corrected
Merge pull request #475 from hauner/functional-options

not all functional test options were handled.
Merge pull request #478 from sezeryilmaz/GRAILS-11211b

GRAILS-11211 - missing namespaces in mappings for singular RESTful resou...
Merge branch '2.3.x'