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

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

- Add missing xhci(4) manual page.
- Minor update in some USB manual pages.

MFC after: 3 days
Approved by: thompsa (mentor)

Use our preferred license text (no more "voices in his head"). While here,
also move to a 2-clause license. From n_hibma@:

"The 3rd clause was originally there for a reason, but I guess that it is
safe to assume that no one can assume endorsement by me or anyone else
without prior consent on anything really, so we might as well remove that
clause."

Approved by: n_hibma

Cross reference ehci(4).

Suggested by: Flemming Jacobsen
MFC after: 3 days

Fixed the misplaced $FreeBSD$.

Bump document date for last commit.

Add a HARDWARE section which lists supported devices.

MFC after: 3 days

Remove bogus advertising clauses.

Reviewed by: n_hibma, roberto

mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: normalize .Nd.

Prepare for mdoc(7)NG.

Update @freebsd.org email addresses to @FreeBSD.org as is the
precedent.

Update my e-mail address

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

Second round of config related changes to the manpages.

device blah0 -> device blah for PCI devices and busses.

Discourage usage of controller in kernel config files. Reflect this
by changing ``controller'' to ``device'' as per GENERIC and LINT.

* remove i386 specific mark
* some style and syntax fixes
* some duplicated $FreeBSD$ tags removed

$Id$ -> $FreeBSD$

Various man page cleanup:

- Sort xrefs
- FreeBSD.ORG -> FreeBSD.org
- Be consistent with section names as outlined in mdoc(7).
- Other misc mdoc cleanup.

PR: doc/13144
Submitted by: Alexey M. Zelkin <phantom@cris.net>

Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

.\" $Id$
.\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by: bde

Added man page usb uhci ohci