Merge r683626, r685112 from trunk:

mod_dav_fs: Retrieve minimal system information about directory 
entries when walking a DAV fs, resolving a performance degradation on
Windows.

PR: 45464


* modules/dav/fs/repos.c (DAV_FINFO_MASK): Define macro.
  (dav_fs_walker): Use DAV_FINFO_MASK when stat'ing the 
  directory member during the walk.

Reviewed by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@686395 13f79535-47bb-0310-9956-ffa450edef68