title: Ckeditor removes empty tags
body: <p>There is a problem with CKEditor
  when the user inserts empty tags:</p>
  
  <p>(in HTML source mode)</p>
  
  <pre><code>&lt;a href="fds" class="doIt"&gt;&lt;/a&gt;
  </code></pre>
  
  <p>When he presses on the source and then back again, the tag 'A' is gone.
  I made a little research, and I found that this happens since there is a very complicated function in ckeditor.js
  that checks whether there is a value inside the element. If there's none the CKEditor drops the tag.</p>