GRAILS-11354 - copy test from master branch
Merge branch '2.3.x' of github.com:grails/grails-core into 2.3.x
upgrade to latest g-d-m release and change version to 2.3.9
Merge branch '2.3.x'

Conflicts:
	build.gradle
	build.properties
	grails-test-suite-uber/src/test/groovy/grails/util/GrailsUtilTests.java