Prepare release 1.6.5

Author: MarioBlazek

doc/CHANGELOG.md

@@ -6,6 +6,10 @@ 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/).
 
+## [1.6.5] - 2019-02-28
+### Fixed
+- Exporter did not took into account date filtering  - tnx @ludwig031
+
 ## [1.6.4] - 2019-02-20
 ### Added
 - Display form error when captcha validatio fails - tnx @bvrbanec