KAZOO-3070: New api that return account tree /account/account_id/tree
KAZOO-3070: Doc
KAZOO-3070: Change sliptwith to dropwhile
Merge pull request #650 from 2600hz/KAZOO-3070

KAZOO-3070: New api that return account tree /account/account_id/tree
KAZOO-3143: normalize payload from smartPBX
KAZOO-3143: remove io:format
Merge pull request #652 from 2600hz/KAZOO-3143

KAZOO-3143: normalize payload from smartPBX
KAZOO-3137: Adding timezone to provision data + some code formatting
KAZOO-3137: Correct for pull request
KAZOO-3137: More specific set_timezone function