Release Summary for 4.0.21
  Changes to 4.0 after version 4.0.20
  * JRMaitre/GitHub [Merge pull request #74 from 2600hz/grandstream-4.0  adds grandstream icons](https://github.com/2600hz/monster-ui/commit/c26503f8550dbadbb7420c3ae4a571fbd06dcf13)
  * plau [adds grandstream icons](https://github.com/2600hz/monster-ui/commit/4f121a3d207745b73e856ebb6f20f67d7dd40748)
  * Jean-Roch Maitre [UI-2595 UI-2599 UI-2600: manual fix of 4.0 for downloading documents from the ledger API. Fixes the download button in CDRs of myaccount](https://github.com/2600hz/monster-ui/commit/996a1f568d87d65f11234f576a9a246936a620d9)
 -- 2600Hz Offical <packages@2600hz.com>  Thu, 23 Feb 2017 09:46:51 PM +0000
