title: Hide excluded folders from tree in IntelliJ IDEA
body: <p>After updating to <code>IntellijIdea 14</code> I have discovered that an excluded folder in my project is now visible.</p>
  
  <p><img src="https://i.stack.imgur.com/xfxhs.png" alt="Image of intelliJ folder structure with hidden folder visable"></p>
  
  <p>How do I hide it?</p>