title: Router.after is deprecated, is there a replacement global after hook?
body: <p>I want to change the title of the page after any route has been rendered, to the name of that route. This is the code I was using before:</p>
  
  <pre><code>Router.after(function(){document.title = this.route.name;});
  </code></pre>
  
  <p>The <a href="http://eventedmind.github.io/iron-router/" rel="nofollow">manual</a> mentions using onAfterAction inside an individual route, but I'd like to do it globally?</p>