nph CGIs should die when a Timeout happens. It was previously not possible to

do this because we had no way of monitoring traffic on the socket.  It's
now possible to do it.

Reviewed by:	Dean Gaudet, Brian Behlendorf, Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79325 13f79535-47bb-0310-9956-ffa450edef68