on SCSI call TEST UNIT READY instead of st driver.

Reiplemented drive::DriveGeneric::waitUntilReady to use TEST UNIT READY
SCSI command.

Done.

Done.

CASTOR-4749: tapeserverd must NOT treat tapegateway::NoMoreFiles as an error in response to a tapegateway::VolumeRequest

A new unit test has been created for validating that Volume request -> No More Files is not considered as an error.

The code has been changed accordingly. EndNotificationErrorReport is still considered an error.

Conflicts:
	castor/scheduler/diskmanager/activitycontrol.py

Renamed vdqm_CreateRequestForAggregator and vdqm_QueueRequestForAggregator to vdqm_CreateRequest and vdqm_QueueRequest

Conflicts:
	castor/castor.conf