Change date of release in CHANGELOG

Signed-off-by: Armin Hueneburg <[email protected]>

Author: hueneburg

CHANGELOG.md

@@ -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/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [1.0.0] - unreleased
+## [1.0.0] - 2017-08-24
 ### Added
 - This file
 - Static VersionInformation class