Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

A number of places in the source tree still reference cuad.* after
sio(4) was deprecated by uart(4).

s/cuad/cuau/g/

PR: docs/171533
Reviewed by: imp
Approved by: cperciva (implicit)
MFC after: 3 weeks

Clenup code a bit and do not call fork(2) before dameon(3) where not needed.

MFC after: 1 month

Let bsd.prog.mk set SRCS and MAN to their default values.

Serial devices now called /dev/cuadXX not /dev/cuaaXX

Replace all uses of the old netgraph constants NG_*LEN by the new
constants NG_*SIZ that include the trailing NUL byte. This change
is mostly mechanical except for the replacement of a couple of snprintf()
and sprintf() calls with strlcpy.

Update Bluetooth code.

Reviewed by: M. Warner Losh <imp@bsdimp.com>; John Hay <jhay@freebsd.org>
Approved by: M. Warner Losh <imp@bsdimp.com> (mentor)

Reapply mdoc(7) fixes that got accidentally lost in the last
Bluetooth update, and fix a few more issues.

Submitted by: Maksim Yevmenkin <m_evmenkin@yahoo.com>, ru
Approved by: re (blanket)

Part 2 of the commit if new bluetooth code.
Submitted by: Maksim Yevmenkin <m_evmenkin@yahoo.com>
Approved by: re@

mdoc(7) police: markup fixes.

Approved by: re

The second try a committing the bluetooth code
Has been seen to work on several cards and communicating with
several mobile phones to use them as modems etc.

We are still talking with 3com to try get them to allow us to include
the firmware for their pccard in the driver but the driver is here..
In the mean time
it can be downloaded from the 3com website and loaded using the utility
bt3cfw(8) (supplied) (instructions in the man page)

Not yet linked to the build

Submitted by: Maksim Yevmenkin <myevmenk@exodus.net>
Approved by: re