title: Ionic 2 - Loading Controller doesn't work
body: <p>I am trying to use the recently added LoadingController this way : </p>
  
  <pre><code>let loading=this.load.create({
    content: "Connexion au serveur Migal en cours..."
  });
  
  loading.present();
  
  this.http.get(this.urlCheckerForm.value.migalUrl+'/action/MobileApp/URLChecker')
    .map(res =&gt; res.json())
    .subscribe(
      data =&gt; this.newConnection(data,loading),
      error =&gt; this.catchURLError(loading));
  
  loading.dismiss();
  </code></pre>
  
  <p>Basically, I just want to display my loading pop-in before my page is loaded, and dismiss it after.</p>
  
  <p>I followed the example on <a href="http://ionicframework.com/docs/v2/api/components/loading/LoadingController/" rel="nofollow">Ionic 2 Documentation</a>, but it doesn't seem to work at all...</p>
  
  <p><strong>EDIT :</strong> The loading component doesn't even show up.</p>