Upgraded Joda-time Plugin Dependency from 1.3.1 to 1.5 to support grails...

... version > 2.4.x.
Yes these plugin version not matter. It will be overridden if parent app have upgraded version of plugin and if not it will ask you to upgrade versions. I gone through these release notes. While Upgrading version we need to check previous versions plugin compatibility. Here I prefered documentation which specify necessary updates required from 2.3.X to 2.4.X.