Code review comment for lp:~allenap/maas/packaging.kill-all-the-configs-cluster

> Gavin,
>
> I made some improvements to your branch. You can just land this one and
> I'll follow up with:
>
> https://code.launchpad.net/~andreserl/maas/improve_packaging_regiond_clusterd/+merge/263607

Thanks!

Do I need to do anything in this branch? It looks like I need to update
the changelog. There's also your inline comment about upgrades from <=
1.8: does your branch take care of that or should I fix it?