Release Summary for 4.0.37
  Changes to 4.0 after version 4.0.36
  * lazedo/bitbashing [add a audio option for callflow page_group action (#3423)](https://github.com/2600hz/kazoo/commit/f18b56ce59599112f3f254d8782b2562bbee7141)
  * Pierre Fenoll/lazedo [backport #3417 (use a tag for erlang.mk) (#3421)](https://github.com/2600hz/kazoo/commit/ebdf659fef0e606f25c5fe547ba41bc3c7b2e21e)
  * bitbashing/Pierre Fenoll [created a parallel migration (#3412)  * created a parallel migration    * remove kt_rates    * formatting    * parallel-migrator: from 2N to N where N=#accounts    * parallel-migrator: use Ref optimisation in case of large message queues    * parallel-migrator: make fmt    * parallel-migrator: missing spec    * parallel-migrator: fix the spec    * parallel-migrator: fix the spec](https://github.com/2600hz/kazoo/commit/5b7d920c4ad2700ecc4c4541b7a1e87275720ba8)
  * Pierre Fenoll/lazedo [Lazedo patch 1 4oh (only adds tests) (#3416)  * lazedo-patch-1: add tests    * lazedo-patch-1_4oh: downgrade tests](https://github.com/2600hz/kazoo/commit/cd090729734eaae431d06ff7d044f765e3928967)
  * Pierre Fenoll/lazedo [only track assignments for reconcilable numbers (#3414) (#3415)  * only track assignments for reconcilable numbers    * address pr comments    Conflicts:  	applications/crossbar/src/modules/cb_callflows.erl](https://github.com/2600hz/kazoo/commit/a90bd19804e4d20d025d4eb7f2301b5d47265887)
 -- 2600Hz Offical <packages@2600hz.com>  Fri, 10 Mar 2017 04:47:13 AM +0000
