Description of Storage configuration options

Configuration option = Default value	Description
[storage]
claim_pipeline =	(ListOpt) Pipeline to use for processing claim operations. This pipeline will be consumed before calling the storage driver's controller methods.
message_pipeline =	(ListOpt) Pipeline to use for processing message operations. This pipeline will be consumed before calling the storage driver's controller methods.
queue_pipeline =	(ListOpt) Pipeline to use for processing queue operations. This pipeline will be consumed before calling the storage driver's controller methods.