- Add the ability to invoke the main service method as an API call, without having to fallback to bytes.
- Add some utility get/set (one of which got removed after deprecation but is not necessarily that useless).
- Both changes to make using the rewrite valve possible.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1431444 13f79535-47bb-0310-9956-ffa450edef68