ls -R, -C, sorted, mtime/ctime for v2
rm -rf
mkdir -p
add chmod
add chown/chgrp
fix S_ISREG etc portable, u32 type?
update man page

OTHER:
option remove SDL from 8086tiny
demo-vga.c in old nx

ADDED
	genfs
	bootblock handling
	ls [-ld]
	change argument structure, add - options for ls/cp etc
	disk free / disk in use blocks
	reorder program arguments

FIXES:
	fix char mknod argc handling
	fix mkfs v1
	fix -n option overwriting -i
	add -> cp
	unlink -> rm
	dir -> ls
	unlink IS_DIR for v1
	ls -l output format
	namelen != 14 && != 30 in mkfs
