Merge branch '61-release-4-5-0' into 'master'

Resolve "Release 4.5.0"

Closes #61

See merge request !58

CHANGELOG.md

@@ -5,6 +5,8 @@ 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]
+
+## [4.5.0] - 2019-10-03
 ### Changed
 * *docker/rocketchat* updated to 2.1.0. (#60)
 * *docker/pipeline-worker* updated to 19.09. (#60)
@@ -168,7 +170,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 * Initial version of `rocketchat` role. (#1)
 
-[Unreleased]: https://projects.task.gda.pl/ansible-roles/rocketchat/compare/4.4.0...master
+[Unreleased]: https://projects.task.gda.pl/ansible-roles/rocketchat/compare/4.5.0...master
+[4.5.0]: https://projects.task.gda.pl/ansible-roles/rocketchat/compare/4.4.0...4.5.0
 [4.4.0]: https://projects.task.gda.pl/ansible-roles/rocketchat/compare/4.3.0...4.4.0
 [4.3.0]: https://projects.task.gda.pl/ansible-roles/rocketchat/compare/4.2.0...4.3.0
 [4.2.0]: https://projects.task.gda.pl/ansible-roles/rocketchat/compare/4.1.0...4.2.0