Update project authors statements to Dartino

pkg/fletchc/lib/fletch_compiler.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.fletch_compiler;
 
 import 'dart:async' show
     Future;
 
 import 'dart:convert' show
     UTF8;
@@ skipping 320 matching lines @@
 }
 
 bool _looksLikeNativesJson(Uri uri) {
   return new File.fromUri(uri).existsSync();
 }
 
 Uri _guessNativesJson() {
   Uri uri = executable.resolve('natives.json');
   return _looksLikeNativesJson(uri) ? uri : null;
 }