Update changelog, bumping v0.1.1

CHANGELOG.md

@@ -3,8 +3,21 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/) and [Keep a CHANGELOG](http://keepachangelog.com).
 
+## [0.1.1] - 2018-05-10
+
+### Fixed
+
+* Counting an empty client collection throws a warning (in php>=7.2)
+
+### Improved
+
+* Import of root level functions and classes
+* PHPDoc blocks
+* CI builds now also running on php7.2
+
 ## [0.1.0] - 2017-11-26
 
 Initial release.
 
+[0.1.1]: https://github.com/hollodotme/fast-cgi-proxy/compare/v0.1.0...v0.1.1
 [0.1.0]: https://github.com/hollodotme/fast-cgi-proxy/tree/v0.1.0