Add config for amqp durable/auto_delete queues

This patch makes two new config options (amqp_durable_queues and
amqp_auto_delete) that enable durable and auto delete queues in amqp.

Fixes: bug #1033915
DocImpact
Change-Id: I56e5c92f1ed8ac2d429a306f3f38a963f0138c6c
Merge "Add config for amqp durable/auto_delete queues"