Make NT work after the re-org. The files in src/nt have moved in

the repository to src/os/win32. The other changes are to make it compile
again after this move.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78956 13f79535-47bb-0310-9956-ffa450edef68