Prepare 2.1.0 release

Author: tobias-93

CHANGELOG.md

@@ -1,9 +1,15 @@
 # Changelog
 
+## v2.1.0 - 2017-12-13
+- Add Symfony 4 compatibility ([#300](https://github.com/FriendsOfSymfony/FOSJsRoutingBundle/pull/300))
+- Add JSON dump functionality ([#302](https://github.com/FriendsOfSymfony/FOSJsRoutingBundle/pull/302))
+- Fix bug denormalizing empty routing collections from cache
+- Update documentation for Symfony 3 ([#273](https://github.com/FriendsOfSymfony/FOSJsRoutingBundle/pull/273))
+
 ## v2.0.0 - 2017-11-08
 - Add Symfony 3.* compatibility
 - Added `--pretty-print` option to `fos:js-routing:dump`-command, making the resulting javascript pretty-printed
 - Removed SF 2.1 backwards compatibility code
 - Add automatic injection of `locale` parameter
 - Added functionality to change the used router service
-- Added normalizer classes
+- Added normalizer classes