Update project authors statements to Dartino

pkg/immi_samples/lib/sequenced_presenter.dart

-// Copyright (c) 2015, the Fletch project authors. Please see the AUTHORS file
+// Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
 library immi_samples.sequenced_presenter;
 
 import 'package:immi/dart/immi.dart';
 
 abstract class SequencedPresenter<T extends Node> {
   // Returns presentation graph for valid index otherwise null.
   T presentAt(int index);
 
   void toggleAt(int index);
 }