Update project authors statements to Dartino

tests/unsorted/spawn_fib_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';
 
 int fib(n) {
   if (n <= 2) return n;
   return fib(n - 1) + fib(n - 2);
 }
 
 void run() {
   fib(12);
 }
 
 void main() {
   withProcessRunner((runner) {
     for (int i = 0; i < 4000; i++) {
       runner.run(run);
     }
   });
 }