Added
Merge branch 'master' of github.com:miekg/dns
Add more efficient label test functions

Also add tests for it.
Fixo
Add todo
Add the beginning of a AS212 server
Re-arrange some comments
Make SplitLabels use Split
Make nextLabel public
Uh uppercase it here too
Rename the Label* functions

SplitLabels -> SplitDomainName
CompareLabels -> CompareDomainName
LenLabels -> CountLabel
          -> NextLabel was added as a simple iterator-like function