Now that we have a build-tools directory, move the various support
files used by Autoconf and Automake into it as well to reduce clutter
at the top level.
Change-Id: Ieae317524d5354e3a6168507c569378f7913b05f
Reviewed-on: http://gerrit.openafs.org/2432
Tested-by: Russ Allbery <rra@stanford.edu>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
