release modello plugin 1.7

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1447749 13f79535-47bb-0310-9956-ffa450edef68
modello snapshot repo not needed

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1447750 13f79535-47bb-0310-9956-ffa450edef68