title: Can't modify spotify playlist
body: <p>I am using JohnnyCrazy/SpotifyAPI-NET for this application in Visual Studio.</p>
  
  <p>The code creates a playlist just fine, but I can't modify it in any way(adding tracks, making the playlist private/public).</p>
  
  <p>I am using the right scope (Scope.PlaylistModifyPrivate | Scope.PlaylistModifyPublic)</p>
  
  <pre><code>private FullPlaylist currentPlaylist;    
  
  public void DoThisStuff()
      {
          _profile = _spotify.GetPrivateProfile();
          currentPlaylist = _spotify.CreatePlaylist(_profile.Id, Convert.ToString(DateTime.Now), false);
          _spotify.AddPlaylistTrack(_profile.Id, currentPlaylist.Uri, "41VtJHghmomTfNrbTSF2Uj");            
      }    
  </code></pre>