Solve service status handle leak on multi-service ApacheMonitor

instances, and disconnect computer function on multi-system
applications of ApacheMonitor.

PR: 33803
Reported by: K.W.Schick <drax sawebs.com>
Backport: 606481

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@606482 13f79535-47bb-0310-9956-ffa450edef68