Now the installer should fit to be integrated into the
distribution. Changes:
	* /n/fossil -> /n/newfs
	* kfs support added
	* ext2 support is commented out, because ext2srv
      does not fit onto the floppy.
	* fossil mountdist support works
	* on mountdist, the bins of it are binded into the
      /bin of the floppy
	* fmtventi does bind its binaries in /bin/venti
	* some /n paths are removed
	* the $wsys error is now fixed in textonly install
	* fixed pcflop to include loopback device