title: cannot share facebook video link from php sdk
body: <p>This is a rather strange issue..
  I am not able to publish a facebook video link on my wall.</p>
  
  <p>The following code works perfectly fine...</p>
  
  <pre><code>$attachment = array(
    'link' =&gt; "www.google.com"
  );
  $publish = $facebook-&gt;api('/me/feed', 'post', $attachment);
  </code></pre>
  
  <p>But the following code doesnt </p>
  
  <pre><code>$attachment = array(
    'link' =&gt; "http://www.facebook.com/video/video.php?v=10150238694155484"
  );
  $publish = $facebook-&gt;api('/me/feed', 'post', $attachment);
  </code></pre>
  
  <p>It doesn't post anything to my wall.</p>
  
  <p>Has anyone seen the same issue?</p>