title: Youtube extractor doesn't work
body: <p>I have a problem with the library YoutubeExtractor C#.
  I develop for iOS and the problem is that when I try to create a new variable VideoDownloader Visual studio doesn't find the type.</p>
  
  <p>I think that the problem is that I cannot write the file with this library!</p>
  
  <p>Have someone any ideas to fix this problem??</p>
  
  <pre><code>        partial void UIButton220_TouchUpInside(UIButton sender)
      {
          IEnumerable &lt; VideoInfo &gt; videos= DownloadUrlResolver.GetDownloadUrls(url.Text);
          VideoInfo video = videos.First(p =&gt; p.VideoType == VideoType.Mp4 &amp;&amp; p.Resolution == Convert.ToInt32(cboResolution.TextInputMode));
          if(video.RequiresDecryption)
              DownloadUrlResolver.DecryptDownloadUrl(video);
  </code></pre>
  
  <p>//this is not recognize by visual studio "VideoDownloader"</p>
  
  <pre><code>VideoDownloader downloader = new VideoDownloader(video, Path.Combine(Application.StartupPath + "\\", video.Title + video.VideoExtension));  }
  </code></pre>