Preperation for Samba 4.0 beta1!

[Andrew Bartlett]

I've pushed a WHATSNEW for Samba 4.0 beta1, and flipped the switch to
make s3fs the default for new provisions. 

I would like to cut a beta tomorrow, once we sort out the krb5 ccache
issue I'm working with ab on.  Please let me know if that would be a
problem, and feel free to update/expand the WHATSNEW.

Andrew Bartlett
-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org