use a more standard maven directories structure

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1590537 13f79535-47bb-0310-9956-ffa450edef68
use a more standard maven directories structure

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1590538 13f79535-47bb-0310-9956-ffa450edef68
fix some values in pom

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1590539 13f79535-47bb-0310-9956-ffa450edef68