Merge mod_wombat from the wombat branch:

 <https://svn.apache.org/repos/asf/httpd/httpd/branches/wombat-integration>
Into trunk.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@723843 13f79535-47bb-0310-9956-ffa450edef68