title: How to set mapping on Ember-Data
body: <p>I'm beginning to work with ember-data and I have a problem to map the data</p>
  
  <p>Here an exemple of my code ( i've place a jsonTest as an exemple of the data received from de backend , I don't work on the backend and I cannot modify the response from the server )</p>
  
  <pre><code>Clive = Ember.Application.create();
  // MODEL
  
  
  Clive.Deadline = DS.Model.extend({
      title : DS.attr('string'),
  });
  
  jsonTest = '{"items":[{"id":93,"title":"title","date":"14-11-2012"}]}';
  
  // Adapter 
  Clive.adapter = DS.Adapter.create({
      findAll : function(store,type){
          var  self = this;        
          self.didFindAll(store, type, jsonTest);
      }
  });
  
  Clive.store = DS.Store.create({
    revision: 11,
    adapter: 'Clive.adapter'
  });
  
  Clive.deadlineList = Clive.Deadline.find().get('items');
  </code></pre>
  
  <p>When I run the code I have this error :</p>
  
  <pre><code>Uncaught Error: assertion failed: Your server returned a hash with the key 0 but you have no mapping for it 
  </code></pre>
  
  <p>Here a jsfidlle with the exemple : <a href="http://jsfiddle.net/gilles/6D5BC/" rel="nofollow">http://jsfiddle.net/gilles/6D5BC/</a></p>