Adds module 'WhoDebug'.

This module allows us to easily use the new features on_whoreply() gives us.
  As this is a module for debugging, it is not recommended to load it
  in general settings. Regardless, the commands are limited to admins only.

Commands: userdata, channeldata, isadmin, ismod,
          isop, isvoice, ison, isidentified, isoper
The bot now stores user hosts and channel lists.

With the new function on_whoreply(), we are able to introduce a lot of
 new features that will be *very* useful. We're able to determine if
 other nicknames are bot administrators, network operators or away.

With this in mind, this change adds the following for both irc.py and modules:
  isOp(nick, channel)
  isVoice(nick, channel)
  isOn(nick, channel)
  isOper(nick)
  isIdentified(nick)
  isBotAdmin(nick)
  isBotModerator(nick)

  getUserData(nick)
  getChannelData(channel)