Bump to version 2.2.4

Signed-off-by: Xuanwo <xuanwo@yunify.com>

CHANGELOG.md

@@ -4,6 +4,21 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [2.2.4] - 2017-09-05
+
+### Added
+
+- Add ok property to Unpacker
+
+### Changed
+
+- Force the zone ID to be lowercase
+
+### Fixed
+
+- Fix bug that next not return data
+- Fix bug that abort upload shoule return 204
+
 ## [2.2.3] - 2017-08-23
 
 ### Added
@@ -146,6 +161,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 - Provide Official Qingstor SDK for Python
 
+[2.2.4]: https://github.com/yunify/qingstor-sdk-python/compare/2.2.3...2.2.4
 [2.2.3]: https://github.com/yunify/qingstor-sdk-python/compare/2.2.2...2.2.3
 [2.2.2]: https://github.com/yunify/qingstor-sdk-python/compare/2.2.1...2.2.2
 [2.2.1]: https://github.com/yunify/qingstor-sdk-python/compare/2.2.0...2.2.1

qingstor/sdk/__init__.py

@@ -15,4 +15,4 @@
 # +-------------------------------------------------------------------------
 # -*- coding: utf-8 -*-
 
-__version__ = '2.2.3'
+__version__ = '2.2.4'