KAZOO-2033: add handler for arity 3 setter
KAZOO-2033: cleanup spec for response_402
KAZOO-2033: cleanup dialyzer and cb_context record access
KAZOO-2094: handle trailing slash in URL
KAZOO-2033: set resp status to success when removing no agents
KAZOO-2033: fix deleting queue roster
KAZOO-2033: curl samples for queues
KAZOO-2033: more cURL samples
KAZOO-2033: log function_clause exceptions more prettily
KAZOO-2033: handle an empty roster POST on an empty queue