Updated .BI TLD definition

See https://github.com/weppos/ianawhois/commit/94faeaaa789717a26610d71ea8fc48390ff09960
Trying to guess the whois.nic.bi response format.

Is the WHOIS interface still under testing?
Add whois.smallregistry.net domains and parsing.
Add spec for whois.smallregistry.net.
Flatten the second level domains list.
Cleanup the scanner.

* The scanner should not use complex types, so, return hashes.
* The registrar should be a Whois::Record::Registrar, so, remove my home
  made one.
response_throttled? for whois.nic.fr parser
Now whois.dns.be parser supports 'Maximum queries per hour' message.
Now whois.dns.be parser supports 'QUARANTINE' and 'OUT OF SERVICE' status.

Both are reported as :registered.
Merge branch 'whois.dns.be'
Fix whois.nic.fr 'struct size differs' error
Indentation
Whitespaces and conventions
AST should only contain primitive types
Prefix all fields with the field: prefix
Take advantage of block
CHANGELOG
AST should only contain primitive types
Sort specs
Normalize status values