Updated project documentation

git-svn-id: https://svn.apache.org/repos/asf/james/server/trunk@1452284 13f79535-47bb-0310-9956-ffa450edef68
Added @Override to queue

git-svn-id: https://svn.apache.org/repos/asf/james/server/trunk@1452285 13f79535-47bb-0310-9956-ffa450edef68