PowerDNS: Get the config working for version >=3.3

There were a few different issues here:

 * lazy-recursion=yes apparently did nothing (see upstream Git). Just
   remove that.

 * "include" is now "include-dir".

 * I couldn't get my own custom root hints file working. Just use the
   root servers instead of Google's DNS. according to some online
   searching this should work, but whatever.
Commit graunt.net changes Earle forgot to commit
group/passwd: commit package changes
Commit misc debian comment changes