title: check permission against group not users using Auth->authorize="actions"
body: <p>Can any one explain me the working of <code>Auth-&gt;authorize = "actions"</code><br>
  In my project i am planning tp give this.<br>
  As <a href="http://book.cakephp.org/view/396/authorize" rel="nofollow noreferrer">this</a> taught me the authorize will call the <code>$this-&gt;Aro-&gt;check($user,"controllers/:controller/:action")</code>  </p>
  
  <p>This will check the against the user right??<br>
  that means the user should be there in aros table.<br>
  But i don't need this to check against user but i need to check against a group<br>
  How can i achive this.</p>
  
  <p>now when the users is not in Aro table it showing the </p>
  
  <p>So that The Aro's will be only the groups and adding of users to the Aros is needed  </p>
  
  <p>thankz in advance</p>