title: context.createElement is not a function in fluxible 1.0.x
body: <p>Upgraded the app from fluxible v0.4.x to v1.0.x and all is looking well, except that this error is now happening. <code>context.createElement is not a function</code></p>
  
  <p>The relevant lines of code seem to be:</p>
  
  <pre><code>// ...
  var app = new Fluxible({
      component: Application
  });
  // ...
  var context = app.createContext();
  // ...
  React.renderToString(context.createElement());
  </code></pre>
  
  <p>Any thoughts on where to look or what to fix?</p>