message: Prepare to release 3.2.0.
diff: @@ -5,10 +5,12 @@ All notable changes to this project will be documented in this file.
  The format is based on [Keep a Changelog](http://keepachangelog.com/)
  and this project adheres to [Semantic Versioning](http://semver.org/).
  -## Unreleased
  -
  +<!-- ## Unreleased -->
  <!-- Add new, unreleased changes here. -->
  +## [3.2.0] - 2017-05-15
  +* Add ProjectConfig toJSON method.
  +
  ## [3.1.0] - 2017-05-15
  * Add browserCapabilities and basePath options.
  