Update project authors statements to Dartino

tests/unsorted/spawn_argument_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:fletch';
 
 import 'package:expect/expect.dart';
 import 'package:isolate/process_runner.dart';
 
 main() {
   Expect.throws(() => Process.spawn(noarg, 99), (e) => e is ArgumentError);
@@ skipping 15 matching lines @@
 }
 
 void arg(arg) { }
 void noarg() { }
 
 void arg0(arg) => Expect.equals(0, arg);
 void arg42(arg) => Expect.equals(42, arg);
 void arg87([arg = 87]) => Expect.equals(87, arg);
 
 void argFoo(arg) => Expect.equals('foo', arg);