title: action without a view. Need a module?
body: <p>I want to execute an action which doesnt really need a view. In this example this is a "logout" function, but this could be even an AJAX call (for example, I just need a number back).</p>
  
  <p>Should I add a module? Well, I'd rather do a "flat" script as an action which redirect to the index page, when its done. And in this case, where to put this flat script?</p>