title: Which permission I need for FB_Ignited method fb_feed?
body: <p>In this time I implement Facebook Ignited library to my application Public Ads. Facebook connect/login with no problems. But when i want publish customer ad to their facebook timeline everytime I get result:</p>
  
  <p>scope for FB application Email only</p>
  
  <pre><code>fb_feed() - Facebook::api() exception caught: (#200) The user hasn't authorized the application to perform this action
  </code></pre>
  
  <p>with scope publish_actions</p>
  
  <pre><code>fb_feed() - Facebook::api() exception caught: An unknown error has occurred.
  </code></pre>
  
  <p>Where I make mistake? Which scope permissions are needed for method fb_feed('post')?</p>
  
  <p>Here is my code:</p>
  
  <pre><code>$params = array(
      "message" =&gt; "Message for customer's friends",
      "link" =&gt; "http://www.mywebpage.com/ads/iphone4s/12312",
      "picture" =&gt; "http://image.mywebpage.com/lHkOsiH.png",
      "name" =&gt; "Sample title for ad",
      "caption" =&gt; "www.mywebpage.com",
      "description" =&gt; "Sample text of customer ad."
  );
  
  try {
      $this-&gt;fb_me = $this-&gt;fb_ignited-&gt;fb_get_me();
  } catch(FBIgnitedException $e) {
      echo $e-&gt;getMessage();
  }
  
  if ($this-&gt;fb_me) {
      try {
          $feed_id = $this-&gt;fb_ignited-&gt;fb_feed('post',null, $params);
      } catch(FBIgnitedException $e) {
          echo $e-&gt;getMessage();
      }
  }
  </code></pre>