title: React autoFocus attribute is not rendered
body: <p>I'm trying to render an <code>&lt;input&gt;</code> field with <code>autofocus</code>:</p>
  
  <pre><code>&lt;input type="text" autoComplete="off" autoFocus={true} className="form-control" /&gt;
  </code></pre>
  
  <p>But it's being rendered as:</p>
  
  <pre><code>&lt;input type="text" autocomplete="off" class="form-control"&gt;
  </code></pre>
  
  <p>And the input does not focus.</p>
  
  <p><strong>Why is that?</strong> How can I get the <code>autofocus</code> attribute to render?</p>