message: Update CHANGELOG regarding PolymerBehavior in Analysis.mixins.
diff: @@ -11,7 +11,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
  Unreleased section, uncommenting the header as necessary.
  -->
  -<!--## Unreleased-->
  +## Unreleased
  +
  +* `generateAnalysis()` now includes PolymerBehavior information in its `mixins` collection. Identified by `metadata.isPolymerBehavior`.
  ## [2.0.0-alpha.34] - 2017-03-20
  