rat plugin setup (so build like reporting)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/weaver/trunk@1600167 13f79535-47bb-0310-9956-ffa450edef68
missing license headers

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/weaver/trunk@1600168 13f79535-47bb-0310-9956-ffa450edef68