Update project authors statements to Dartino

pkg/fletchc/lib/src/worker/worker_main.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.
 
 library fletchc.worker_isolate;
 
 import 'dart:async' show
     Completer,
     EventSink,
     Future,
     Stream,
@@ skipping 155 matching lines @@
         ..onDone(handleDone);
     return taskCompleter.future;
   }
 
   void endTask(int exitCode) {
     clientIncoming.close();
     commandSender.sendExitCode(exitCode);
     commandSender.sendClose();
   }
 }