Prepare 2.0.0 release

Author: polothy

docs/CHANGELOG.md

@@ -9,6 +9,10 @@ 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.
+
+## [2.0.0] - 2017-06-01
 ### Changed
 - BREAKING: requires PHP 5.6 or later.
 - BREAKING: requires Moodle 3.2 or later.
@@ -168,7 +172,8 @@ 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/moodlerooms/moodle-plugin-ci/compare/1.5.8...master
+[Unreleased]: https://github.com/moodlerooms/moodle-plugin-ci/compare/2.0.0...master
+[1.5.8]: https://github.com/moodlerooms/moodle-plugin-ci/compare/1.5.8...2.0.0
 [1.5.8]: https://github.com/moodlerooms/moodle-plugin-ci/compare/1.5.7...1.5.8
 [1.5.7]: https://github.com/moodlerooms/moodle-plugin-ci/compare/1.5.6...1.5.7
 [1.5.6]: https://github.com/moodlerooms/moodle-plugin-ci/compare/1.5.5...1.5.6