title: How to focus a paper-input with Polymer 1.0?
body: <p>This question is a follow-up to this one: <a href="https://stackoverflow.com/questions/24496590/polymer-focus-on-paper-input-or-core-input-element#">polymer focus() on &lt;paper-input&gt; or &lt;core-input&gt; element</a></p>
  
  <p>How can I focus in a <code>paper-input</code> element using the Javascript API ?</p>
  
  <p>(using Polymer 1.0)</p>