Fix ap_mpm_query results:

AP_MPMQ_MAX_THREADS: Single threaded means one thread per child, not zero
AP_MPMQ_MAX_DAEMONS: Max # daemons by config is determined by MaxClients, not
                     ServerLimit


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1057045 13f79535-47bb-0310-9956-ffa450edef68