Clean up the repository.

I have no idea why ruby stuff is in here.
Add compiled teamspeak.js file to gitignore
Various fixes and improvements.

"undefined" is no longer spewed onto the console many times at startup.

The bot will now respond where it was prompted, rather than always
directly to individual users.

Unfortunately, the bot will still only listen in on one channel at a
time. I'm not sure if the ServerQuery API supports listening to all
channels, it's rather confusing.
Update package.json