title: plugin_action_links not working in WordPress 2.8+
body: <p>I developed a plugin with Settings link that was working fine in WordPress 2.7. Version 2.8 brings some additional security features that cause Settings link displaying message: You do not have sufficient permissions to access this page.</p>
  
  <p>This is the API hook I use to create link:</p>
  
  <pre><code>function folksr_plugin_action($links, $file) {
      if (strstr($file, 'folksr/folksr.php')) {
          $fl = "&lt;a href=\"options-general.php?page=folksr/settings.php\"&gt;Settings&lt;/a&gt;";
          return array_merge(array($fl), $links);
      }
      return $links;
  }
  
  add_filter('plugin_action_links', 'folksr_plugin_action', 10, 2);
  </code></pre>
  
  <p>Full source code available at <a href="http://wordpress.org/extend/plugins/folksr/" rel="nofollow noreferrer">plugin page</a>.</p>
  
  <p>Settings screen does not contain any additional logic, just a couple of options and HTML echoed to the screen.</p>
  
  <p>Suprisingly enough, Codex does not return anything for search phrase "plugin_action_links". Can you provide example or point me to working code for Settings link in Plugins menu?</p>