[ci skip] Update CHANGELOG

CHANGELOG.md

@@ -1,5 +1,32 @@
 # Change Log
 
+## [v2.2.0](https://github.com/Polymer/polymer/tree/v2.2.0) (2017-10-18)
+- [ci skip] Autoupdate version when releasing ([commit](https://github.com/Polymer/polymer/commit/d893d6ae))
+
+- add edge 15, use chrome stable ([commit](https://github.com/Polymer/polymer/commit/c6f2d817))
+
+- super it and put back takeRecords ([commit](https://github.com/Polymer/polymer/commit/02e2f148))
+
+- more feedback ([commit](https://github.com/Polymer/polymer/commit/15cbdff5))
+
+- Address feedback ([commit](https://github.com/Polymer/polymer/commit/e71b84a8))
+
+- add some description of the dir mixin ([commit](https://github.com/Polymer/polymer/commit/f98ad117))
+
+- Fix linting ([commit](https://github.com/Polymer/polymer/commit/624189a3))
+
+- Always do the :dir transform ([commit](https://github.com/Polymer/polymer/commit/31c0ebc7))
+
+- Clean up closure externs ([commit](https://github.com/Polymer/polymer/commit/1e5ea942))
+
+- remove bogus semicolon ([commit](https://github.com/Polymer/polymer/commit/7d044b49))
+
+- Declare Polymer.Templatizer directly, for Closure. (#4870) ([commit](https://github.com/Polymer/polymer/commit/3b155173))
+
+- First draft of a `:dir` aware element mixin ([commit](https://github.com/Polymer/polymer/commit/2ef65aa6))
+
+- [ci-skip] Update CHANGELOG ([commit](https://github.com/Polymer/polymer/commit/28e60271))
+
 ## [v2.1.1](https://github.com/Polymer/polymer/tree/v2.1.1) (2017-09-28)
 - Prepare for release 2.1.1 ([commit](https://github.com/Polymer/polymer/commit/f049dd91))