Merge pull request #2 from aaannz/pvscsi

implement vscsi-attach
pvscsi: implememnt single device scsi-detach

Signed-off-by: Olaf Hering <olaf@aepfle.de>
pvscsi: man pages

Signed-off-by: Olaf Hering <olaf@aepfle.de>
pvscsi: fix DEFINE_DEVICE_REMOVE destroy

Signed-off-by: Olaf Hering <olaf@aepfle.de>
pvscsi: add comment for DEFINE_DEVICES_ADD

Signed-off-by: Olaf Hering <olaf@aepfle.de>
pvscsi: move libxl__add_vscsis call

Signed-off-by: Olaf Hering <olaf@aepfle.de>
pvscsi: correct comment for DEFINE_DEVICES_ADD

Signed-off-by: Olaf Hering <olaf@aepfle.de>
fix minor memory leaks
preserve Xen4.2 ABI, WIP