JAMES-1491 Update to apache-mailet-2.5.0

git-svn-id: https://svn.apache.org/repos/asf/james/server/trunk@1458551 13f79535-47bb-0310-9956-ffa450edef68
JAMES-1492 Update to protocols release 1.6.3

git-svn-id: https://svn.apache.org/repos/asf/james/server/trunk@1458553 13f79535-47bb-0310-9956-ffa450edef68