title: show item/article list in category tree in joomla k2 module or component
body: <p>its posibble to get view like this (with module or component)  in joomla k2?</p>
  
  <ol>
  <li>parent category 1
  <ul>
  <li>child category 1.1
  <ul>
  <li>item 1.1.1</li>
  <li>item 1.1.2</li>
  <li>item 1.1.3</li>
  </ul></li>
  <li>child category 1.2
  <ul>
  <li>item 1.2.1</li>
  <li>item 1.2.2</li>
  <li>item 1.2.3</li>
  </ul></li>
  <li>child category 1.3
  <ul>
  <li>item 1.3.1</li>
  <li>item 1.3.2</li>
  <li>item 1.3.3</li>
  </ul></li>
  </ul></li>
  <li>parent category 2
  <ul>
  <li>child category 2.1
  <ul>
  <li>item 2.1.1</li>
  <li>item 2.1.2</li>
  <li>item 2.1.3</li>
  </ul></li>
  <li>child category 2.2
  <ul>
  <li>item 2.2.1</li>
  <li>item 2.2.3</li>
  <li>item 2.2.3</li>
  </ul></li>
  <li>child category 2.3
  <ul>
  <li>item 2.3.1</li>
  <li>item 2.3.2</li>
  <li>item 2.3.3</li>
  </ul></li>
  </ul></li>
  <li>parent category 3
  <ul>
  <li>child category 3.1
  <ul>
  <li>item 3.1.1</li>
  <li>item 3.1.2</li>
  <li>item 3.1.3</li>
  </ul></li>
  <li>child category 3.2
  <ul>
  <li>item 3.2.1</li>
  <li>item 3.2.2</li>
  <li>item 3.2.3</li>
  </ul></li>
  <li>child category 3.3
  <ul>
  <li>item 3.3.1</li>
  <li>item 3.3.2</li>
  <li>item 3.3.3</li>
  </ul></li>
  </ul></li>
  </ol>
  
  <p>what i mean is like this</p>
  
  <p><a href="https://docs.google.com/file/d/0B3PfKryCuyZkN3dMajNTUlo0LU0/edit?usp=drive_web" rel="nofollow">click to see image</a></p>
  
  <p>anyone can help? please.. you will save my live   :cheer:</p>