- Eliminated massive code duplication
- Eliminated code for configuring forward and hint "zones",
as those no longer have zone objects. Left stub zones in
because those probably will have zone objects associated
with them.
- Fixed several bugs:
+ 'allow-transfer' was not obeyed for slave zones or stub zones
+ 'dialup' was not obeyed for stub zones
+ 'transfers-per-ns' was not obeyed for any zones