Win32: Track and display "Parent Server Generation:" in

mod_status output. The generation will be bumped at
server graceful restart, when the child process exits
by hitting MaxRequestsPerChild or if the child
process exits abnormally. [Bill Stoddard]


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91646 13f79535-47bb-0310-9956-ffa450edef68