Update project authors statements to Dartino

src/vm/multiprogram_test.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/test_case.h"
 #include "src/shared/platform.h"
 
 #include "include/fletch_api.h"
 
 namespace fletch {
@@ skipping 151 matching lines @@
   delete[] programs;
 
   FletchTearDown();
 
   return result;
 }
 
 }  // namespace fletch
 
 int main(int argc, char** argv) { return fletch::Main(argc, argv); }