title: Problems using ng-chart in angular 2
body: <p>I've been using angular 2 for a week, I'm trying to install ng-charts, so I followed:
  <a href="https://github.com/valor-software/ng2-charts" rel="nofollow">https://github.com/valor-software/ng2-charts</a>
  When I do npm start, it doesn't load anything and in the browser, and the console says:
  chart.js:4 Uncaught ReferenceError: require is not defined
  (index):35 Error: Error: XHR error (404 Not Found) loading <a href="http://localhost:3000/node_modules/ng2-charts/ng2-charts" rel="nofollow">http://localhost:3000/node_modules/ng2-charts/ng2-charts</a>(…)</p>
  
  <p>I've been searching for hours and I think is something related with adding it to system.config.js
  I added this to map:
  'ng2-charts': 'node_modules/ng2-charts',
  And this to packages:
  'ng2-chart':{main: 'ng2-charts.js', defaultExtension: 'js' }</p>
  
  <p>All packages from the documentation I've read, have an index.js, but ng-charts does not, so I thought I could use ng2-charts.js </p>
  
  <p>In the instructions they say "System.js bundles can be found in bundles directory of npm package or at npm cdn" But i cant find on google what to do with that bundles... nor I can find any more detailed instructions about how to install it. For things like this I usually find everything I need already answered somewhere, I don't know what it happening today, I feel really lost :( .....</p>