Update CHANGELOG.md

Author: nadar

CHANGELOG.md

@@ -2,8 +2,9 @@
 
 All notable changes to this project will be documented in this file. This project make usage of the [Yii Versioning Strategy](https://github.com/yiisoft/yii2/blob/master/docs/internals/versions.md).
 
-## 1.0.4 (in progress)
+## 1.0.4 (29. May 2019)
 
++ Fix problem with git wrapper version.
 + Added Unglue Server to docker-compose
 
 ## 1.0.3 (1. April 2019)