The worker MPM now handles shutdown and restart requests. It

definately isn't perfect, but we do stop the servers correctly.
The biggest problem right now is that SIGHUP causes the server to
just die.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@90065 13f79535-47bb-0310-9956-ffa450edef68