add Geb to gorm-test-app
add rest-client-builder for testing
add remote-control plugin for testing
GRAILS-11536 add test that checks auto-flushing behaviour
GRAILS-11536 also test save and save+flush besides auto-saving
GRAILS-11536 add separate checks for transactional and non-transactional usage
use correct http port in url
enable remotecontrol for all environments
use snapshot versions of Hibernate plugins (that use g-d-m 3.1.2.BUILD-SNAPSHOT)
Merge branch '2.3.x'

Conflicts:
	apps/gorm-test-app/application.properties