Update project authors statements to Dartino

benchmarks/messaging/ProcessSpawn.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:fletch';
 
 import '../BenchmarkBase.dart';
 import 'utils.dart';
 
 void main() {
   new ProcessSpawnBenchmark().report();
@@ skipping 20 matching lines @@
     }
     for (int i = 0; i < DEFAULT_MESSAGES; i++) {
       input.receive();
     }
   }
 
   static void processEntry(port) {
     port.send(null);
   }
 }