Update project authors statements to Dartino

tests/unsorted/simple_loop_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.
 
 foo() => 42;
 
 class C {
   bar() => 87;
 }
 
 main() {
   // For now, this just tests that we exercise
   // the new native interpreter.
   var o = new C();
   for (int i = 0; i < 1000; i++) {
     for (int j = 0; j < 10000; j++) {
       foo();
       o.bar();
     }
   }
 }