Add apache license header.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1443688 13f79535-47bb-0310-9956-ffa450edef68
Correct dependency information.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1443689 13f79535-47bb-0310-9956-ffa450edef68