title: How to set checkbox property checked from model using Ember 2.x?
body: <p>Is there a way to bind the property of a checkbox to a property in the model, for example: </p>
  
  <p>I have this simple model on a route:</p>
  
  <pre><code>export default Ember.Route.extend({
     model:function(params) {
         return { "isAdmin": true }
     } 
  });
  </code></pre>
  
  <p>And on the template I want to display the checkbox checked when the isAdmin is true:</p>
  
  <pre><code> &lt;input id="adminControll" name="isAdmin" type="checkbox" onchange={{action "toggleAdmin" model.isAdmin}} /&gt;
  </code></pre>
  
  <p>Any ideas on how to achieve this?</p>