title: Ionic 2 RC0 Property 'tz' does not exist on type 'typeof moment'
body: <p>Recently Ionic released the RC0 of Ionic Framework and I am exciting. But I use moment-timezone and it generated an error.</p>
  
  <p>I installed moment and moment-timezone like so:</p>
  
  <pre><code>npm install --save moment moment-timezone
  
  typings install --save --global dt~moment dt~moment-timezone
  </code></pre>
  
  <p>Then I import moment and tz like so:</p>
  
  <pre><code>import moment from 'moment';
  import 'moment-timezone';
  </code></pre>
  
  <p>When I run <code>ionic build</code> I got error:</p>
  
  <pre><code>Property 'tz' does not exist on type 'typeof moment'.
  </code></pre>
  
  <p>My <code>ionic info</code> result is:</p>
  
  <pre><code>Cordova CLI: 6.3.1
  Gulp version:  CLI version 3.9.1
  Gulp local:   Local version 3.9.1
  Ionic Framework Version: 2.0.0-rc.0
  Ionic CLI Version: 2.1.0
  Ionic App Lib Version: 2.1.0-beta.1
  ios-deploy version: 1.8.6
  ios-sim version: 5.0.8
  OS: Mac OS X El Capitan
  Node Version: v5.11.1
  Xcode version: Xcode 7.3.1 Build version 7D1014
  </code></pre>
  
  <p>Someone can help me?</p>
  
  <p>Thanks!</p>