Fix the timeout logic. The order is now:

1 - worker->timeout
2 - proxy_conf->timeout
3 - server->timeout.
ap_get_module_config() is not perfect by that is easy to port back to 2.2.x.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@550514 13f79535-47bb-0310-9956-ffa450edef68