move vax header files to their own directory

new fs system calls prior to truncate and rename

cosmetics

rewrite of nami + reorganization of wdir

pull maknode and wdir to ufs_nami.c

merge with calder

disc quotas

complete fix of 4.15 (clear i_rdev in real inode before
second iupdate - otherwise all the good work is undone)
4.15 is probably not really needed (does no real good).

replace 2 lines accidentally dropped in 4.13

clear dino on disk in itrunc in all cases

remove insque/remque asm's in favour of macros
(it doesn't work without this, register numbers are wrong)

inode LRU cache added (from Chris Maltby, Sydney Uni)

change iput() to irele() when releasing unlocked inodes

irele() becomes iunlock(); new irele() does iput() for already unlocked inodes
fixes race condition in adding entries to directories.

merge into new file system

symbolic links

new multiple-group stuff

plock/prele -> ilock/irele

first bootable version

plock/prele here now

lint and a few minor fixed

use tablefull()

rid of NINODE

minor fixups to restart stuff; version 4.1 for distrib