[Samba] Upgrade from 4.1.9 to 4.1.17

[mourik jan heupink]

> I think it was some kind of ldb upgrade/maintenance. It would be handy
> to have some feedback or progess bar. I really don't like unresponsive
> starts, especially after an upgrade...
I think it has to do with the dns tombstones being deleted from the
database.

I guess if you search the archives for tombstones, you'll find it explained.

Regards,
MJ