[maven-release-plugin] prepare branch 0.7

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1479622 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare release 0.7

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1479624 13f79535-47bb-0310-9956-ffa450edef68