Update project authors statements to Dartino

tests/unsorted/4_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';
 
 int fib(int n) {
   if (n <= 1) return 1;
   return fib(n - 1) + fib(n - 2);
 }
 
 void main() {
   Expect.equals(2178309, fib(31));
 }