title: Date formatter is not working when using with ionic and angular v2
body: <p>I have following code snippet : </p>
  
  <p>home.html :</p>
  
  <pre><code> &lt;ion-item&gt;
         &lt;ion-label&gt;Date:&lt;/ion-label&gt;
         &lt;ion-label class="alignme"&gt;{{todayDate | date: "MM/dd/yy" }}&lt;/ion-label&gt;
        &lt;/ion-item&gt;
  </code></pre>
  
  <p>home.ts:</p>
  
  <pre><code>import {Component} from '@angular/core';
  import {NavController} from 'ionic-angular';
  
  
  @Component({
    templateUrl: 'build/pages/home/home.html'
  })
  
  export class HomePage {
  
  this.todayDate = new Date();
  
  }
  </code></pre>
  
  <p>While loading application on device it is showing blank screen . When i remove pipe from todayDate , it's showing current date value.</p>