title: Animation of sequence insert/remove/reorder
body: <p>Is there any suggested pattern for the above?</p>
  
  <p>My current thinking is to, before updating the sequence array:</p>
  
  <ol>
  <li>setTransform with Translate+curve to "slide" nodes to new positions</li>
  <li>Upon completion, Translate back to 0,0 and update the array</li>
  </ol>
  
  <p>Of course, a lot of how the above logic would work depends on the View, e.g. Scrollview vs GridLayout.  And likewise, other animations could be relevant too.</p>
  
  <p>So I guess I'm also wondering if:</p>
  
  <ol>
  <li>Every dev should be doing this on their own</li>
  <li>The community should create wrapped views that handle this</li>
  <li>This is anything Famo.us will provide in the future (I joined the party late so am not clear on all their plans).</li>
  </ol>