message: Updated CHANGELOG for the 0.22.0 release.
diff: @@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
  ## Unreleased
  +## [0.22.0](https://github.com/PolymerLabs/polyserve/tree/v0.22.0) (2017-09-18)
  +
  * Identify wct-browser-legacy as a web-component-tester client package, to add a hook for deferring mocha execution in support of requirejs.
  * Change `x(...args)` syntax to `x.apply(undefined, arguments)` to support IE11.
  