KAZOO-2540: add wh_json_schema module for loading of schemas and for
adding defaults from schema to a data object
KAZOO-2540: use wh_json_schema to load schemas and add defaults to for
limits doc
KAZOO-2540: handle array values with objects inside
KAZOO-2540: remove rebar from makefiles
KAZOO-2540: formatting
KAZOO-2450: formatting and remove wh_json_validator in favor of
wh_json_schema for setting defaults
KAZOO-2540: specs and type updates
KAZOO-2450: use jesse to validate vmbox when changing pin via callflow
KAZOO-2450: remove wh_json_validator and tests
KAZOO-2450: use named function in place of anonymous
KAZOO-2540: typo
Merge pull request #391 from 2600hz/KAZOO-2540

Kazoo 2540