SCSI: scsi_create_task must set task->cdb_size

We forgot to set task->cdb_size which means all tasks we create with this
function becomes test unit ready :-(

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
SCSI: scsi_task_get_status  add getter function for task status and sense

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
New version 1.13.0

 - Fix UNMAP tests
 - Build updates
 - Check residuals also when status != GOOD
 - Add WSNZ bit to the tests
 - Various test updates
 - Fix bug in scsi_create_task so it sets cdb_len correctly
 - Add a getter function for scsi task status and sense
 - Fixes and workarounds for Dell Equallogic issues
 - Be more flexible when allowing for unit attentions during connect time

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>