Release Summary for 4.2.13
  Changes to 4.2 after version 4.2.12
  * [fix hearbeat to heartbeat](https://github.com/2600hz/kazoo-configs-kamailio/commit/72c93863bbb87c4acbc234526b02a84541637cf1) by James Aimonetti
 -- 2600Hz Official <packages@2600hz.com>  Tue, 17 Apr 2018 00:24:02 +0000
