Rename fletch -> dartino

pkg/gpio/lib/gpio.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.
 
 /// GPIO support providing access to controlling GPIO pins.
 ///
 /// Currently this has only been tested with a Raspberry Pi 2.
 ///
 /// Access types
 /// ------------
@@ skipping 29 matching lines @@
 /// ```
 ///
 /// See ```/samples/raspberry_pi/``` for additional details.
 ///
 /// Reporting issues
 /// ----------------
 /// Please file an issue [in the issue
 /// tracker](https://github.com/dartino/sdk/issues/new?title=Add%20title&labels=Area-Package&body=%3Cissue%20description%3E%0A%3Crepro%20steps%3E%0A%3Cexpected%20outcome%3E%0A%3Cactual%20outcome%3E).
 library gpio;
 
-import 'dart:fletch.ffi';
+import 'dart:dartino.ffi';
 import 'dart:typed_data';
 
 import 'package:file/file.dart';
 
 // Foreign functions used.
 final ForeignFunction _lseek = ForeignLibrary.main.lookup('lseek');
 final ForeignFunction _poll = ForeignLibrary.main.lookup('poll');
 
 /// GPIO modes.
 enum Mode {
@@ skipping 325 matching lines @@
   /// Exception message.
   final String message;
   /// OS error number if any.
   final int errno;
   const GPIOException(this.message, [this.errno]);
   String toString() {
     if (errno == null) return message;
     return '$message (error ${errno})';
   }
 }