[Samba] Bind version requirements

[Sketch]

On Tue, 13 Dec 2016, Bob of Donelson Trophy via samba wrote:

> I read on the wiki page "BIND9_DLZ_DNS_Back_End" that the bind version
> supported by the Samba version 4.5.2 is Bind 9.11?

I think this is just poor wording on the wiki's part.  The minimum version 
of Samba with support for BIND 9.11 is Samba 4.5.2.  It will still support 
older versions (down to 9.8).