Update project authors statements to Dartino

tests/unsorted/nsm_setter_test.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:expect/expect.dart';
 
 class X {
   noSuchMethod(invocation) => 42;
 }
 
 main() {
   var x = new X();
   Expect.equals(87, x.y = 87);
   Expect.equals(99, x.y = 99);
 }