title: "libs/collab" is no longer supported in AEM 6.1
body: <p>Does anyone know the equivalent library for:</p>
  
  <ul>
  <li><code>/libs/collab/calendar/components/form/recurrence</code></li>
  <li><code>/libs/collab/calendar/components/form/icslink</code></li>
  </ul>
  
  <p>They are no longer supported by AEM 6.1. </p>
  
  <p>I tried finding it in CRXDE but I failed to do so.</p>