Update project authors statements to Dartino

tests/unsorted/messaging_process_death_test.dart

-// Copyright (c) 2014, the Fletch project authors. Please see the AUTHORS file
+// Copyright (c) 2014, 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 'dart:async';
 import 'dart:fletch';
 
 main() {
   var input = new Channel();
   var port = new Port(input);
   Process.spawn(sleepAndThenSend, port);
 }
 
 void sleepAndThenSend(Port port) {
   new Timer(const Duration(milliseconds: 100), () {
     port.send(42);
   });
 }