Rename class - it only provides constants; it is not a test case

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1491567 13f79535-47bb-0310-9956-ffa450edef68
Tidy up test excludes

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1491568 13f79535-47bb-0310-9956-ffa450edef68