SLING-3888 - Move groovy extension bundle to contrib/scripting

Move integration tests to the contrib module.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1621991 13f79535-47bb-0310-9956-ffa450edef68
SLING-3888 - Move groovy extension bundle to contrib/scripting

Move the groovy extension and groovy bundle to the contrib launchpad.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1621992 13f79535-47bb-0310-9956-ffa450edef68
SLING-3888 - Move groovy extension bundle to contrib/scripting

Make the move for the groovy bundle from extensions to scripting.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1621993 13f79535-47bb-0310-9956-ffa450edef68