title: Material UI not working with JSPM
body: <p>I am unable to use React add-ons with JSPM but React itself is working.
  JSPM throws this error:</p>
  
  <pre><code>Potentially unhandled rejection [3] Error loading "react-addons-{addon}" at http://localhost:3000/react-addons-{addon}.js
  </code></pre>
  
  <p>This problem appears when I try to use the Material-UI in my project.</p>