requested by deraadt@

- new sysctl vfs.nfs.privport to require NFS mount requests to be on
reserved ports when set to 1 (the default).
- mountd now automatically sets the sysctl depending on the -n flag.
- add mountd_flags to rc.conf to enable the -n flag at boot.
deraadt@ ok

pave the way for future work; ok since this does not change the generated
MAKEDEV

doesn't trigger security(8)'s ownership checks. ok bob@

driver

suggested and ok by kettenis@

we are making the move where ttya will become the zs devices, and tty00
will support com(4) devices. ok drahn

ok naddy@ todd@

grep should assume ASCII text, fixes umask detection
ok millert@ jaredy@

to (for instance) interrupt dhclient with a ^C instead of a 'CAPS-LOCK C'
from e@molioner.dk checked by matthieu

doubly mounted mfs partitions. Also, at the end of the mount dance,
try mount all partitions, not just nfs partitions. Handles a case
where local paritition mounted inside a nfs partition where not
mounted by rc (/usr on nfs with a local /usr/obj, for example).
ok deraadt@ henning@

mode (tested with the HP ProCurve 420wl). add a note to the manual page and
the example configuration.

from jared rr spiegel, closes PR 4982, ok beck@

ok henning@

ok beck@ kettenis@ norby@

has a rdo on $int_if that stops working then. pt out by cedric

drivers, and to wscons as the console; a few parts borrowed from OpenBSD/macppc
as well.
Currently only working with displays configured in 1bpp or 8bpp modes; this
limitation will be worked on ASAP.
Tested by claudio@ kettenis@ martin@ nick@ and I on various models. X11 changes
coming soon.

dev/fd comment and point to fd(4).

a long time, but i'm a bloody slacker...