message: Updated CHANGELOG to describe the issues fixed.
diff: @@ -6,12 +6,13 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
  and this project adheres to [Semantic Versioning](http://semver.org/).
  ## Unreleased
  -<!-- List New Changes Here -->
  * [BREAKING] Dropped support for node v4, added support for node v8. See our [node version support policy](https://www.polymer-project.org/2.0/docs/tools/node-support) for details.
  * Dependency updates. Upgraded to new `polymer-bundler`, `polymer-analyzer` and `dom5` versions.
  * Fixed bug where `<html>`, `<head>` and `<body>` were added to documents mutated by `HtmlSplitter` and the `CustomElementsES5AdapterInjector`.
  * Print build-time warnings and errors with full location information, and precise underlines of the place where the problem was identified.
  +* Fixed issue where two copies of entrypoint files with same name are emitted by bundler stream: an un-bundled one, followed by bundled one.
  +* Fixed issue where html imports were emitted by bundler as individual files even though they were bundled.
  ## [1.1.0] - 2017-04-14
  