title: Aptana Studio 3 - Warnings when using data-role Tags of HTML 5
body: <p>I want to use Aptana Studio 3 for developing jquery-mobile projects. Since jquery-mobile uses HTML5 I have to use tag attributes like <code>"data-role="header"</code> which is OK for HTML5. </p>
  
  <p>For example:</p>
  
  <pre><code>&lt;div data-role="header"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>But Aptana gives me warnings like: </p>
  
  <blockquote>
    <p>unknown attribute "data-role"</p>
  </blockquote>
  
  <p>How can I fix this, or is it an Aptana Studio 3 bug?</p>