GRAILS-11493 add test for calling encodeAsXML on grails.converters.XML
instance
GRAILS-11428 add dependency to grails-datastore-test-support which contains HibernateTestMixin
Merge branch '2.3.x' into 2.4.x

Conflicts:
	grails-resources/src/grails/grails-app/conf/BuildConfig.groovy