Release Summary for 4.2.1
  Changes to 4.2 after version 4.2.0
  * Summary
      - As an admin I want to be able to impersonate a user so that I can easily troubleshoot/test Kazoo
  * Commits
      - [UI-2921: add way to impersonate users from smart pbx](https://github.com/2600hz/monster-ui-voip/commit/db231b832f9bac89eab2c16ecbc3b3247e53feea) by Jean-Roch Maitre
 -- 2600Hz Offical <packages@2600hz.com>  Wed, 11 Oct 2017 23:32:48 +0000
