title: How to use App Version in config.xml when performing a Pro.init
body: <p>I'm developing an Ionic Pro app. During the initialization of Ionic Pro in <code>app.module.ts</code>, I am required to provide an app version like so:</p>
  
  <p><code>
  Pro.init('&lt;APP_ID_PLACEHOLDER&gt;', {
    appVersion: 'APP_VERSION_PLACEHOLDER'
  });
  </code></p>
  
  <p>However, instead of hard coding the app version in the <code>app.module.ts</code> file, I'd like to use the app version in <code>config.xml</code>. </p>
  
  <p>Does anyone know how that can be done?</p>