Rename fletch -> dartino

tests/unsorted/process_current_test.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.
 
-import 'dart:fletch';
+import 'dart:dartino';
 
 import 'package:expect/expect.dart';
 
 main() {
   var channel = new Channel();
   var port = new Port(channel);
 
   var process = Process.spawnDetached(() {
     port.send(Process.current);
     port.send(Process.current);
   });
 
   var processCurrent1 = channel.receive();
   var processCurrent2 = channel.receive();
 
   Expect.equals(process, processCurrent1);
   Expect.equals(process, processCurrent2);
 }