Fix the delegation handling in the *file* and *dnssec* middleware. Refactor tests a bit and show that they are failling. Add a Tree printer, cleanups and tests. Fix wildcard test - should get no answer from empty-non-terminal
Go vet and golint the new code once again. Drop Name from NameTemplate - it's cleaner: nametemplate.Template.
Add support for wildcard records, while taking care of wildcard-cnames and DNSSEC. Add enough tests to check all the corner cases.