title: How to add "--production" option in meteor-up configuration (mupx)?
body: <p>I've successfully deployed a meteor app, but I can't find out how to use the <code>--production</code> option when configuring <a href="https://github.com/arunoda/meteor-up" rel="nofollow">Meteor-Up</a> (mupx)</p>
  
  <p>I'd like to add this option to have all the css and js files compiled in the client side.</p>
  
  <p>I also need to specify <code>--release &lt;release-name&gt;</code>, but hopefully both options will be possible in the same way.</p>