Prepare for 2.5.0 release

Author: polothy

Diff for: docs/CHANGELOG.md

@@ -9,6 +9,9 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 The format of this change log follows the advice given at [Keep a CHANGELOG](http://keepachangelog.com).
 
 ## [Unreleased]
+No unreleased changes.
+
+## [2.5.0] - 2019-02-20
 ### Changed
 - Updated [.travis.dist.yml] to install `openjdk-8-jre-headless` instead of
   `oracle-java8-installer` and `oracle-java8-set-default` packages. See
@@ -236,7 +239,8 @@ The format of this change log follows the advice given at [Keep a CHANGELOG](htt
 - `moodle-plugin-ci shifter` command.  Run YUI Shifter on plugin YUI modules.
 - `moodle-plugin-ci csslint` command.  Lints the CSS files in the plugin.
 
-[Unreleased]: https://github.com/blackboard-open-source/moodle-plugin-ci/compare/2.4.0...master
+[Unreleased]: https://github.com/blackboard-open-source/moodle-plugin-ci/compare/2.5.0...master
+[2.5.0]: https://github.com/blackboard-open-source/moodle-plugin-ci/compare/2.4.0...2.5.0
 [2.4.0]: https://github.com/blackboard-open-source/moodle-plugin-ci/compare/2.3.0...2.4.0
 [2.3.0]: https://github.com/blackboard-open-source/moodle-plugin-ci/compare/2.2.0...2.3.0
 [2.2.0]: https://github.com/blackboard-open-source/moodle-plugin-ci/compare/2.1.1...2.2.0