message: Updated CHANGELOG.md in preparation for 2.0.0-alpha.28 release.
diff: @@ -12,6 +12,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
  -->
  <!--## Unreleased-->
  +
  +## [2.0.0-alpha.28] - 2017-02-24
  +
  ### Fixed
  * PackageUrlResolver encodes URIs returned from `resolve` method.
  