Update project authors statements to Dartino

src/shared/test_main.cc

-// 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.
 
 #include "src/shared/flags.h"
 #include "src/shared/fletch.h"
 #include "src/shared/test_case.h"
 
 namespace fletch {
 
 static void Main(int argc, char** argv) {
   Flags::ExtractFromCommandLine(&argc, argv);
   Fletch::Setup();
   TestCase::RunAll();
   Fletch::TearDown();
 }
 
 }  // namespace fletch
 
 int main(int argc, char** argv) {
   fletch::Main(argc, argv);
   return 0;
 }