Synch with Emacs trunk.

Synch with Emacs trunk.
=======================
2009-04-20  Stefan Monnier  <monnier@iro.umontreal.ca>

	* rfc2047.el (rfc2047-decode-region): Don't skip past `start', which
	could happen if the text is only composed of spaces and/or tabs.

2006-08-10  Romain Francoise  <romain@orebokech.com>

	* dns-mode.el: Alias `zone-mode' to `dns-mode'.
	(dns-mode-soa-auto-increment-serial): New user option.
	(dns-mode-soa-maybe-increment-serial): New function.
	(dns-mode): Add the latter to `write-contents-functions'.

2005-05-27  Lute Kamstra  <lute@gnu.org>

	* textmodes/dns-mode.el (dns-mode): Specify customization group.