title: How to log users activity in Symfony
body: <p>Very simple question I'm not able to find a good answer for...</p>
  
  <p>I have a lot of Entities in my Symfony 2.6 - when ever a user makes some changes to any one of them I would like to have a log entry with who/what/where.</p>
  
  <p>Who maked the changes. (user id)
  What did he/she do. ( POST/PUT data)
  Where was this done (which entity / url)</p>
  
  <p>[EDIT]</p>
  
  <p>It could perhaps just be a table with these columns: </p>
  
  <ul>
  <li>userid</li>
  <li>data</li>
  <li>entity</li>
  <li>created</li>
  </ul>
  
  <p>[/EDIT]</p>
  
  <p>Is there a bundle for this?</p>