update version to 2.4.1

change version to 2.3.10

use 2.4.0 maven plugin

fix Spring version

update version to 2.4 RC2

use locale for response too

update to cache plugin 1.1.3

Merge branch '2.3.x' of github.com:grails/grails-core into 2.3.x

update hibernate plugin to latest version

version 2.4.0.M1