Added CHANGELOG.md file.

CHANGELOG.md

@@ -0,0 +1,68 @@
+# Change Log
+
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to 
+[Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+
+## [2.0.0](https://github.com/corpsee/nameless-utilities/tree/2.0.0) (2017-09-30)
+
+[Full Changelog](https://github.com/corpsee/nameless-utilities/compare/release-1.0...2.0.0)
+
+### Added
+
+- Milliseconds and microseconds to `DateTimeHelper::humanize` method.
+
+### Changed
+
+- Improved tests and documentation.
+- Upgraded minimal PHP version to 5.6.
+
+
+## [1.0.4](https://github.com/corpsee/nameless-utilities/tree/1.0.4) (2017-09-30)
+
+[Full Changelog](https://github.com/corpsee/nameless-utilities/compare/1.0.3...1.0.4)
+
+### Changed
+
+- Updated dependencies.
+- Improved documentation.
+
+
+## [1.0.3](https://github.com/corpsee/nameless-utilities/tree/1.0.3) (2017-07-16)
+
+[Full Changelog](https://github.com/corpsee/nameless-utilities/compare/1.0.2...1.0.3)
+
+### Changed
+
+- Updated dependencies.
+
+
+## [1.0.2](https://github.com/corpsee/nameless-utilities/tree/1.0.2) (2016-01-14)
+
+[Full Changelog](https://github.com/corpsee/nameless-utilities/compare/1.0.1...1.0.2)
+
+### Changed
+
+- Updated dependencies.
+
+
+## [1.0.1](https://github.com/corpsee/nameless-utilities/tree/1.0.1) (2015-11-07)
+
+[Full Changelog](https://github.com/corpsee/nameless-utilities/compare/1.0.0...1.0.1)
+
+### Added
+
+- Method `ArrayHelper::get`.
+
+### Changed
+
+- Updated dependencies.
+- Improved documentation.
+
+
+## [1.0.0](https://github.com/corpsee/nameless-utilities/tree/1.0.0) (2015-09-29)
+
+### Added
+
+- Initial release.