updated changelog for release of 1.1.0

Author: beardyman

CHANGELOG.md

@@ -3,7 +3,13 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased][unreleased]
+- There is no unreleased code at this time.
+
+## [1.1.0] - 2016-05-02
+### Added
 - Message Events API added.
+
+### Changed
 - Transmission API now accepts a DateTime object for startDate
 
 ## [1.0.3] - 2016-03-25
@@ -36,7 +42,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 - README now has proper code blocks denoting PHP language
 
-[unreleased]: https://github.com/sparkpost/php-sparkpost/compare/v1.0.3...HEAD
+[unreleased]: https://github.com/sparkpost/php-sparkpost/compare/v1.1.0...HEAD
+[1.1.0]: https://github.com/sparkpost/php-sparkpost/compare/v1.0.3...v1.1.0
 [1.0.3]: https://github.com/sparkpost/php-sparkpost/compare/v1.0.2...v1.0.3
 [1.0.2]: https://github.com/sparkpost/php-sparkpost/compare/v1.0.1...v1.0.2
 [1.0.1]: https://github.com/sparkpost/php-sparkpost/compare/v1.0.0...v1.0.1