title: Debugging/printing in a Hubot script
body: <p>I'm trying to debug an existing Hubot script and in the future write my own, and I need an easy way to debug it or at least print values somewhere (but not to the channel). How can I do so?</p>
  
  <p>Bonus points if this can be done with just using Node in some interactive local mode. I'm really not sure where to start.</p>
  
  <p>All scripts Hubot uses are written in Coffeescript.</p>
  
  <p>P.S. I'm using Hubot with Hipchat.</p>