Fix mixing private and public methods with the same name for Groovy 2.0
use spock mock, was throwing method missing exceiption in old implementation
fix unit test by restoring private method and renaming it
remove private modifier so codenarc will run in grails 2.2
Upgrade to CodeNarc 0.19 for bug fixes
Whitespace
ASGARD-1191 - Upgrade Grails to 2.2.4
Grails 2.2.* spock support
Merge pull request #357 from joesondow/ASGARD-1191-Upgrade-Grails-2.2.4

ASGARD-1191 - Upgrade Grails to 2.2.4 in Asgard