Fixed `zeit.world` nameservers check (#954)
Fixed `zeit.world` nameservers check (#954)

Instead of checking if the nameservers are from a known list we
can just check that every nameserver set for the domain ends with
.zeit.world.
zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli