Emacs 23.4 release candidate 1

[Chong Yidong]

The release candidate for Emacs 23.4 is now available for download at:

  ftp://alpha.gnu.org/gnu/emacs/pretest/emacs-23.4rc1.tar.gz

Note that although the version number has been bumped to 23.4 in the
tarball and in the emacs-23 branch, I have not tagged the release yet,
in case there are last minute changes.

If no serious problem surfaces in the next couple of days, I'll release
this as Emacs 23.4.  So please help give it as much testing as possible.
Thank you.