WinNT MPM: Exit the child if the parent process crashes or is terminated.

Submitted by: Oracle, via trawick

The original modification was made some years ago for Oracle HTTP Server
by an Oracle employee.  trawick made additional changes for style and
for trunk/2.4.x changes.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1526666 13f79535-47bb-0310-9956-ffa450edef68