Update changelog

Author: ksassnowski

CHANGELOG.md

@@ -2,6 +2,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.2.0] - 2018-07-17
+### Added
+- Added extra column to failed jobs table containing the exception. (#11)
+
 ## [1.1.0] - 2018-01-31
 ### Added
 - Added configuration option to prefix ui route with a custom prefix.