[PATCH] scsi_error update take 2

[PATCH] scsi_error update take 2

This is an update of a previous patch I posted.
http://marc.theaimsgroup.com/?l=linux-scsi&m=104495114103628&w=2

This patch is against scsi-misc-2.5

The updates from the last patch include:
	- Names changes:
		eh_cmd_list => eh_cmd_q
		eh_list => eh_entry

	- Move shost->in_recovery = 0

	- Switch from scsi_retry_command to scsi_queue_insert for retry
	  to solve fast completions / serial start of retries.

	- Use list_splice_init in scsi_unjam_host.