Merge from emacs--rel--22

Patches applied:

 * emacs--rel--22  (patch 70-73)

   - Update from CVS

2007-07-25  Glenn Morris  <rgm@gnu.org>

   * Relicense all FSF files to GPLv3 or later.

2007-07-25  Stefan Monnier  <monnier@iro.umontreal.ca>

   * lisp/pcvs.el (cvs-temp-buffer): Undo last ill-conceived change.
   Replace it with another one which disables undo before calling
   erase-buffer and then turns it back on if needed.

2007-07-24  Stefan Monnier  <monnier@iro.umontreal.ca>

   * lisp/pcvs.el (cvs-temp-buffer): Disable undo in temp buffers.

Revision: emacs@sv.gnu.org/emacs--devo--0--patch-828