Split Nameserver.pm into separate methods per test, and add some documentation.
Split Nameserver.pm into separate methods per test, and add some documentation.

NZRS/dnscheck,NZRS/dnscheck,NZRS/dnscheck,NZRS/dnscheck,dotse/dnscheck,dotse/dnscheck,NZRS/dnscheck,dotse/dnscheck,dotse/dnscheck,dotse/dnscheck,dotse/dnscheck,NZRS/dnscheck