conversion to git

[Eric Blake]

Now that gnulib has converted to git[1], I'm working on doing the same for M4.

The initial git conversion is complete.  Feel free to check it out:

http://git.savannah.gnu.org/gitweb/?p=m4.git

There are still some things to work out, such as editing the project 
description file stored on git.sv.gnu.org, adding hooks so that commits still 
send mail to the m4-commit list, making sure the git-cvsserver read-only mirror 
works and publishing its address, making the master branch alter the version 
number according to git history (gnulib's build-aux/ looks handy here), and 
disabling the old CVS repository.  Until all those things happen, I will be 
trying to keep the CVS and git repositories in sync, but it will be a manual 
process so there may be some lag between when a patch is committed to one 
repository and when it shows up on the other.

[1]http://lists.gnu.org/archive/html/bug-gnulib/2007-09/msg00112.html, 
http://lists.gnu.org/archive/html/bug-gnulib/2007-09/msg00137.html

-- 
Eric Blake