title: Grunt js entirely non-functional
body: <p>I am trying to use grunt but am failing to get it to do anything very much.</p>
  
  <p>Am using ubuntu 14.04, and have installed npm from the repo, then grunt using <code>sudo npm install -g grunt-cli</code>.</p>
  
  <p>Running run achieves nothing. I get no error message, nothing happens, the command just returns. Rather confused. Not sure what to try next.</p>
  
  <p>I am trying to run the commands in a fresh check out of reveal.js.</p>