Fix MaxClients in the Worker MPM, so that it specifies the maximum

number of clients that can connect at the same time, instead of
specifying the maximum number of child processes.
Submitted by:	Aaron Bannert <aaron@clove.org>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91122 13f79535-47bb-0310-9956-ffa450edef68