[WHATSNEW] Samba AD with MIT Kerberos + Version change

[David Disseldorp]

On Sun, 30 Apr 2017 09:45:42 +0200, Andreas Schneider via samba-technical wrote:

> The attachd patch adds a section for Samba AD with MIT KRB5 to WHATSNEW and 
> changes the version number.
> 
> 
> Review and push much appreciated!

I've pushed the first two commits to autobuild. I'm in favour of the
4->5 version number change, but will wait until the dust settles
before pushing it.

Cheers, David