Update project authors statements to Dartino

lib/fletch/fletch.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 dart.fletch;
 
 import 'dart:fletch._system' as fletch;
 
 /// Fibers are lightweight co-operative multitask units of execution. They
 /// are scheduled on top of OS-level threads, but they are cheap to create
 /// and block.
@@ skipping 538 matching lines @@
 // TODO(sigurdm): Move this function?
 Channel sleep(int milliseconds) {
   if (milliseconds is! int) throw new ArgumentError(milliseconds);
   Channel channel = new Channel();
   Port port = new Port(channel);
   _sleep(milliseconds, port);
   return channel;
 }
 
 @fletch.native external void _sleep(int milliseconds, Port port);