title: Ember.js and ember-data error loading json
body: <p>I receive the error</p>
  
  <pre><code>Uncaught TypeError: Object #&lt;Object&gt; has no method 'map' 
  </code></pre>
  
  <p>when using ember-data to try and load the json from my api.</p>
  
  <pre><code>App = Ember.Application.create({});
  
  App.Student = DS.Model.extend({
      primaryKey: 's_id',
      s_id: DS.attr('integer'),
      surname: DS.attr('string')
  });
  
  App.Student.reopenClass({
      url: 'api/student.php'
  })
  
  App.adapter = DS.Adapter.create({
      findAll: function(store, type) {
          var url = type.url;
  
          console.log(type.url);
  
          jQuery.getJSON(url, function(data){
              store.loadMany(type, data);
          });
      }
  });
  
  App.store = DS.Store.create({
      revision: 4,
      adapter: App.adapter
  });
  
  App.students = App.store.findAll(App.Student);
  </code></pre>
  
  <p>I've made sure the JSON is the correct format but to no avail; any ideas?</p>
  
  <p>Thanks</p>