title: Font-Awesome - icon-spin does not spin when hidden and then displayed
body: <p>When my page loads, I hide the <code>icon-refresh + icon-spin</code> icon by setting its <code>display</code> property to none.  </p>
  
  <p>Now, after some action is performed, I wish to display this icon. I invoke jQuery's <code>.show()</code> method on the icon. However, while the icon is shown, the icon is not spinning anymore.  </p>
  
  <p>If I load it without hiding it initially, it spins. But not when it is hidden and displayed later.</p>
  
  <p>EDIT: If it was not clear from the title, I am using <a href="http://fortawesome.github.io/Font-Awesome/">Font Awesome</a> to display the icons</p>