Update project authors statements to Dartino

tools/capnp/lib/capnp.dart

-// Copyright (c) 2014, the Fletch project authors. Please see the AUTHORS file
+// Copyright (c) 2014, 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 capnp;
 
 import 'dart:io' as io;
 import 'dart:typed_data';
 import 'dart:async';
 import 'dart:core' hide Type;
 
@@ skipping 311 matching lines @@
   }
   return dartTypeOf(type);
 }
 
 Future<ByteBuffer> readEncodedBytes() async {
   StreamIterator iterator = new StreamIterator(io.stdin);
   await iterator.moveNext();
   return iterator.current.buffer;
 }