Changed printing messages to refer to ${OPSYSTEM} instead of NetBSD. Comments

Changed printing messages to refer to ${OPSYSTEM} instead of NetBSD.  Comments
left intact.

Simplified variables for drivename, drivetype, and sect_fwd.

Added rotdelay to newfs commands (defaults to newfs default except
for scsi disks where it defaults to 0).

Made the disk geometry questions more like what PC users are use to
reading (cylinders/heads/sectors).

Added minswap requirement of 8MB, recomendation of 2 x physical memory.

Added messages about what the blocking factor does.

Added message for mount point to NOT include the leading /

How to change disklabel to /sbin/disklabel due to bug in our /bin/sh,
I thought this has been fixed, but it has not!

Changed to use cpio instead of tar, since tar seems so brain dead.

Removed kernfs reference from /etc/fstab creation since FreeBSD does not
have the kernfs.  Made /etc/fstab tabbed so it looks pretty :-).

Added default of floppy drive 0 after we boot from hard disk.

Fixed path in inst1.profile, removed /usr/local/bin, /usr/contrib/bin and .