*) Create an optional function and MPM Query to replace the core output filter.

*) Put an example of using it into the Event MPM, which just calls the original core output filter.  


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/async-dev@278652 13f79535-47bb-0310-9956-ffa450edef68