Release Summary for 4.2.20
  Changes to 4.2 after version 4.2.19
  * [Change Erlang version to 19.3.6.5 (#4443)  This can be set up in the build environment as follows:    1. Add `KERL_BUILD_BACKEND=git` to `.kerlrc`.  2. Build and install the indicated Erlang version in the build     environment prior to building `kazoo-core`.](https://github.com/2600hz/kazoo/commit/475e4553b131427b918e82f5eae9a6bac1862247) by Edwin Fine
  * [[4.2] set correct type and line combo keys for brands (#4688)  * set correct type and line combo keys for brands    Also add vtech combo keys association object    * make apis](https://github.com/2600hz/kazoo/commit/f90d362992be03947328ed331c7e2ad1ee3607e3) by icehess
  * [HELP-35856-4.2: use conference name as ID if ID is missing (#4685)  Prior to the dynamic conference profile work, conference names were  used when interacting with FreeSWITCH. The field used was shifted to  the &#039;id&#039; in the kapps_conference record but the &#039;name&#039; was not used as  a backup if id was missing when building the kapps_conference record.    What would happen is, a callflow with a dynamic conference doc in the  action (defining &quot;name&quot; but not &quot;id&quot;) would get &quot;id&quot; set to  rand_hex(8) instead of the value of &quot;name&quot;. Conference dial API would  put another caller in the &quot;name&quot; conference and an API command to put  the original caller in would fail as the rand_hex was used instead.    If &quot;id&quot; isn&#039;t defined, we now default to using the &quot;name&quot;.](https://github.com/2600hz/kazoo/commit/d907d1a40d113967d0bed0e21ce4805baa12f971) by James Aimonetti
  * [4.2: if no account id is found, try using the call-id to get it (#4683)](https://github.com/2600hz/kazoo/commit/b136420e5cf0f7804d436eee8fff581a90924882) by James Aimonetti
 -- 2600Hz Official <packages@2600hz.com>  Mon, 26 Mar 2018 01:33:19 +0000
