Note: hubot is super-awesome fun, but will destroy your campfire chatroom. Once hubot gets in there, it will be full of random images and stupid crap. Makes it a lot more fun and a lot less useful at the same time.
I don't want to be a hater, but how is this a blogpost(and on the front page of HN)? All of this is literally in Hubots readme.
If you've never used Heroku or git, the Read Me isn't all that helpful. I tried to fill in some of the blanks that I ran across while getting it up and running.