Rename fletch -> dartino

pkg/dartino_compiler/lib/bytecodes.dart

 // 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 fletch.bytecodes;
+library dartino.bytecodes;
 
 import 'dart:typed_data' show
     ByteData,
     Endianness,
     Uint8List;
 
 part 'generated_bytecodes.dart';
 
 const int VAR_DIFF = 0x3FFFFFFF;
 
@@ skipping 72 matching lines @@
   void addUint64(int value) {
     growBytes(8);
     view.setUint64(position, value, Endianness.LITTLE_ENDIAN);
     position += 8;
   }
 
   void sendOn(Sink<List<int>> sink) {
     sink.add(new Uint8List.view(list.buffer, list.offsetInBytes, position));
   }
 }