add PMD, findbugs

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/weaver/trunk@1576392 13f79535-47bb-0310-9956-ffa450edef68
project 1.0 release date

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/weaver/trunk@1576393 13f79535-47bb-0310-9956-ffa450edef68