Callbacks aren't fired on Client.whois

[anna-sunberg]

When I do Client.whois(nick, callback) the callback isn't executed. I do get reply via 'raw' event and 'whois' event (which is just { nick: nick }, useless).

[moshmage]

more data is needed, this should've been fixed in https://github.com/martynsmith/node-irc/pull/338