Bump version, update changelong

Author: avigoldman

CHANGELOG.md

@@ -4,9 +4,9 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased][unreleased]
 
-## [2.0.2] - 2016-07-28
+## [2.0.3] - 2016-07-28
 ### Fixed
-- [#131](https://github.com/SparkPost/php-sparkpost/pull/131) removed any dependency on Guzzle by replacing it with `MessageFactoryDiscovery`
+- Issue [#135](https://github.com/SparkPost/php-sparkpost/issues/135) reported `Http\Discovery\NotFoundException` caused by 2.0.2 update.
 
 ## [2.0.2] - 2016-07-28
 ### Fixed
@@ -78,7 +78,8 @@ This major release included a complete refactor of the library to be a thin HTTP
 ### Fixed
 - README now has proper code blocks denoting PHP language
 
-[unreleased]: https://github.com/sparkpost/php-sparkpost/compare/2.0.2...HEAD
+[unreleased]: https://github.com/sparkpost/php-sparkpost/compare/2.0.3...HEAD
+[2.0.3]: https://github.com/sparkpost/php-sparkpost/compare/2.0.2...2.0.3
 [2.0.2]: https://github.com/sparkpost/php-sparkpost/compare/2.0.1...2.0.2
 [2.0.1]: https://github.com/sparkpost/php-sparkpost/compare/2.0.0...2.0.1
 [2.0.0]: https://github.com/sparkpost/php-sparkpost/compare/1.2.1...2.0.0