Reply packets need an IP that routes back.

We need to NAT through an IP local to the host -- it makes sense to use one
from the instance subnet -- in order to get reply packets to route back.
Remove and then add.
Say no to Unicode logs.
WIP
Rework state loading so update path is used.

This ensures the name server gets all of its records loaded.
Fix formatting.
Fix infinite recursion in delegation.

Prints resolver used. Also fixes some bugs in the name maps and the formatters
for ARPA addresses.