Log Message:
dnsruby-1.42:
o Complicated TXT and NAPTR records now handled correctly
o ZoneReader now handles odd escape characters correctly
o Warns when immediate timeout occurs because no nameservers are configured
o Easy hmac-sha1/256 options to Resolver#tsig=
o ZoneReader fixed for "IN CNAME @" notations
o ZoneReader supports wildcards
o Dnsruby.version method added - currently returns 1.42