Add references to ATAPI support; do a quick job from UTSL on scanners,
and the changer thing. Also document that SCSI bus Ethernet interface
that appears to be supported. Clean up some nroff stuff in the exiting
pages.
could still use a little bit of touchup. I don't think there is any
misinformation in these, but you never know. FreeBSD has a better MI
scsi than we do. Partial fix for misc/2008. The author of that pr
is willing to help a bit as well.