start job (really a start) medata store for cassandra with jpa

git-svn-id: https://svn.apache.org/repos/asf/archiva/sandbox/trunk@1479785 13f79535-47bb-0310-9956-ffa450edef68
oups bad commit

git-svn-id: https://svn.apache.org/repos/asf/archiva/sandbox/trunk@1479786 13f79535-47bb-0310-9956-ffa450edef68