title: jwplayer seek not working after the jwplayer update (version 7.6)
body: <p>I am using latest jwplayer version (7.6). After the update <code>seek</code> function is not working. This is my code</p>
  
  <pre><code>jwplayer('player').setup ({
      'file': video_url,
      'provider': 'video',
      'width': '640',
      'height': '420',
      'image': image_url,
      'autostart': false,
      'primary': 'flash'
  }).seek(300);
  </code></pre>
  
  <p>I tried jwplayer <code>beforePlay()</code> function instead of seek but it doesn't made any change.</p>
  
  <p>How can I achieve this..?</p>