Update changelog for 2.3 release

Author: Jean85

CHANGELOG.md

@@ -5,6 +5,13 @@ 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).
 
 ## [Unreleased]
+## 2.3.0 - 2019-01-28
+### Added
+ - Add support for `ignore_server_port` option (#187, thanks @nocive)
+### Changed
+ - Remove `server_name` option default value: this will help reporting the server name correctly in Docker containers (#181, thanks @jvasseur)
+ - Refactor `ExceptionListener` to have a dedicated `getUserData()` protected method (#180, thanks @bouland)
+
 ## 2.2.0 - 2019-01-05
 ### Added
  - Add the `route` tag automatically to any event generated by a request (#167, thanks @ruudk)