title: webtechnick Facebook logout not working
body: <p>I am using webtechnick facebook plugin, i have everything set and its FB login works perfectly.</p>
  
  <p>I am using  <code>$fbc =$this-&gt;Connect-&gt;User();</code>  to fetch FB details of logged in user</p>
  
  <p>And using </p>
  
  <pre><code>&lt;?php 
      echo $facebook-&gt;login(array('perms' =&gt; 'email,publish_stream','size'=&gt;'small')); 
  ?&gt;
  
  &lt;?php
      echo $this-&gt;Facebook-&gt;logout(); 
  ?&gt;
  </code></pre>
  
  <p>for login,logout respectively. i am getting details of user after login, but it will not unset after performing a logout();</p>
  
  <p>I am using webtechnick fb plugin version 3.1.1 .  Please help me</p>