message: fix: change date on v0.4.0
diff: @@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
  The format is based on [Keep a Changelog](http://keepachangelog.com/)
  and this project adheres to [Semantic Versioning](http://semver.org/).
  -## [0.4.0] - 2018-05-04
  +## [0.4.0] - 2018-04-27
  ### Added
  