title: Firebase retrieve data shows only one result
body: <p>I am trying to retrieve a data of objects and the result shows on the console but it only shows one result(the last result) on the page.</p>
  
  <pre><code>$http.get('/users').success(function(data) {
          $scope.username = data; //assign data to username
          console.log(data);
  });
  </code></pre>
  
  <p>And in my Jade template, i have</p>
  
  <pre><code>section(data-ng-controller='browse')
  h4 hi
  ul(data-ng-repeat='user in username')
  li {{user}}
  </code></pre>
  
  <p>I want to loop through this data</p>
  
  <pre><code> {
    "google: xxxxxxxxxxxxx" : {
      "name" : "ZZZ YYY",
      "profile" : {
        "briefProfile" : "Cost call",
        "career" : "Web Developer",
        "projects" : {
          "-JjtSgiwkqFxTxMv0Gip" : "http://zipper.com"
        }
      },
      "provider" : "google"
    },
    "google:xxxxxxxxxxx" : {
      "name" : "SSS TTT",
      "profile" : {
        "briefProfile" : "Desired Intelligence",
        "career" : "Consultant"
      },
      "provider" : "google"
    }
  }
  </code></pre>
  
  <p>Thanks.(i'm not using angularFire).</p>