Set relativePath to parent, because it is not the default.

git-svn-id: https://svn.apache.org/repos/asf/maven/release/trunk@1585348 13f79535-47bb-0310-9956-ffa450edef68
Add missing license header.

git-svn-id: https://svn.apache.org/repos/asf/maven/release/trunk@1585349 13f79535-47bb-0310-9956-ffa450edef68