Prepare release

git-svn-id: https://svn.apache.org/repos/asf/tomee/site/trunk@1604185 13f79535-47bb-0310-9956-ffa450edef68
Site tweaks

git-svn-id: https://svn.apache.org/repos/asf/tomee/site/trunk@1604191 13f79535-47bb-0310-9956-ffa450edef68