title: Which Ember Data version to use with Ember.js 1.0.0-pre2?
body: <p>I'm attempting to use Ember Data with Ember.js version 1.0.0-pre2. The Ember docs on the website say just to download Ember Data from GitHub. This isn't working because Ember Data is trying to call <a href="https://github.com/emberjs/ember.js/commit/fb6482364432152d6093145eeee38e2ad68cb309#L0R202" rel="nofollow"><code>Ember.merge()</code></a> which isn't present in the 1.0.0-pre2 release. </p>
  
  <p>Which version combo of Ember and Ember Data am I supposed to be using? I tried using the latest commit from Ember's master branch but it breaks my App's router, so I assume it isn't stable. </p>
  
  <p>Here's a copy of my router that breaks in the latest versions (I believe it was pasted from an Ember code sample): </p>
  
  <p><pre class="lang-js prettyprint-override"><code> 
  var App = Ember.Application.create({ });
  App.Router = Ember.Router.extend({
      enableLogging: true,
      root: Ember.Route.extend({
          aRoute: Ember.Route.extend({
              route: '/',
              enter: function(router) {
                console.log("entering root.aRoute from", router.get('currentState.name'));
              },
              connectOutlets: function(router) {
                console.log("entered root.aRoute, fully transitioned to", router.get('currentState.path'));
              }
          })
      })
  });
  </pre></code></p>