Rename fletch -> dartino

tests/pkg/ffi/ffi_test.dart

 // 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.
 
-import 'dart:fletch.ffi';
+import 'dart:dartino.ffi';
 import 'dart:typed_data';
 import "package:expect/expect.dart";
 import 'package:ffi/ffi.dart';
 
 main() {
   testStringFunctions();
   testCircularBuffer();
 }
 
 testList(int size) {
@@ skipping 120 matching lines @@
   memory.free();
 
   var libPath = ForeignLibrary.bundleLibraryName('ffi_test_library');
   ForeignLibrary fl = new ForeignLibrary.fromName(libPath);
   var memstring = fl.lookup('memstring');
   var foreignPointer = memstring.pcall$0();
   Expect.equals('dart', cStringToString(foreignPointer));
   memory = new ForeignMemory.fromAddress(foreignPointer.address, 5);
   memory.free();
 }