Add changes to changelog

Author: javierbrea

CHANGELOG.md

@@ -17,6 +17,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Removed
 
 ## [1.3.0] - 2019-11-17
+### Added
+- Add programmatic Classes end-to-end tests
+- Add files watcher end-to-end tests
+
 ### Changed
 - Full refactor for making it pluggable.
 - Split code into core, cli and api main Classes, which are intended to be published separately.