Update project authors statements to Dartino

samples/lk/gfx/lines_with_history.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.
 //
 
 import 'package:lk/framebuffer.dart';
 
 class MovablePoint {
   final int x, y;
   int mx, my;
 
@@ skipping 65 matching lines @@
 
   while (true) {
     List next = history.first.map((line) => line.getNextLine(surface)).toList();
     next.forEach((line) => line.draw(surface));
     history.insert(0, next);
     if (history.length > 10) {
       history.removeLast().forEach((line) => line.erase(surface));
     }
   }
 }