1. Make consistent usage of AUX dir even for active --shadow option

2. Make sure we do NOT use the nice tar-based tree copy for includes
   because this does the wrong when --shadow is used: Symlinks!
3. Make sure the correct umask is active when "cp" is used.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81042 13f79535-47bb-0310-9956-ffa450edef68