GRAILS-11416 - Add ability to override nullable: false constraint for @Validateable
Remove println for testing
use :hibernate:3.6.10.15
Merge pull request #499 from longwa/GRAILS-11416

GRAILS-11416 - Add ability to override nullable: false constraint for @Validateable
Use :tomcat:7.0.53
Merge branch '2.3.x' into 2.4.x

Conflicts:
	gradle/assemble.gradle
	grails-resources/src/grails/grails-app/conf/BuildConfig.groovy
fix incorrect message suggesting to use the now removed 'upgrade' script
Merge branch '2.4.x' of github.com:grails/grails-core into 2.4.x
Use Spring 3.2.9
Merge branch '2.3.x' into 2.4.x

Conflicts:
	build.gradle
Use Spring 4.0.5
remove references to dsl-support directory
GRAILS-11420 - deprecate the spring data binder
Merge branch '2.4.x'
Merge branch 'master' into groovy_2.3_jdk8