title: What is static get parameters() purpose in Ionic 2?
body: <p>I found out that there is a new construction in latest Ionic 2 Beta.<br>
  It looks like that:</p>
  
  <pre><code>export class ListPage {    
  static get parameters() {
          return [[NavController], [NavParams]];
        }
  ...
  </code></pre>
  
  <p>Could anyone please explain me or give a link to some kind of tutorial or detailed explanation of the purpose of this method? And how it is connected with Page constructor, injection and modules?</p>