…lable error when response_unavailable?
…ther response_? methods.
…the response is throttled (references #61).
… rescued and re-raised as Whois::ConnectionError.
…rted. Parsers now can mark a property as supported or not supported using 'property_supported' and 'property_not_supported' methods in order to distinguish between properties not supported by the answer and methods that still need to be implemented because the parser is incomplete.
…er and parser selection based on registered methods.
…d return the final whois server.
…simple benchmark and some preliminary tests.