#52 Channels not updated for WHOIS reply

[Ebenezer]

The Server object does not seem to update the User
object when it receives a reply from a WHOIS request
listing what channels a user is on.

org.relayirc.chatengine.Server.onReplyWhoIsChannels
(String, String) should probably call:

User user = getUserFromWaitingList(nick);
user.setChannels(channels);