Updated in a lot of ways

* Made sure it works with new NodeJS 0.8.x
* Updated it to Twitter's new streaming API
* Added new "location"-tracking option
* Implemented support for more message types - one can now eg. listen to a "skip count" event to get notified of the amount of tweets that Twitter skipped delivering due to too high volume (setting the bounding box of location to cover the entire world is a great way to try this out)
Big update - now at 0.2.0