Work on all servers, not just top-level... Each Vhost has its own context and...

Work on all servers, not just top-level... Each Vhost has its own context and watchdog instance. We may need to revisit this and have just one instance

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1784203 13f79535-47bb-0310-9956-ffa450edef68