Import of NLNETLABS/Net-DNS-0.81 from CPAN.

gitpan-cpan-distribution: Net-DNS
gitpan-cpan-version:      0.81
gitpan-cpan-path:         NLNETLABS/Net-DNS-0.81.tar.gz
gitpan-cpan-author:       NLNETLABS
gitpan-cpan-maturity:     released