Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

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

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

By popular demand, move __HAVE_ACPI and __PCI_REROUTE_INTERRUPT into
param.h. Per request, I've placed these just after the
_NO_NAMESPACE_POLLUTION ifndef. I've not renamed anything yet, but
may since we don't need the __.

Submitted by: bde, jhb, scottl, many others.

Switch MACHINE to "pc98" on FreeBSD/pc98.
Add copyright.

Approved by: FreeBSD/pc98 development team.

Add reach-over include files to read i386/foo.h. In time, the pc98
specific code will migrate to these files to augment or replace the
version in i386/include and/or i386/linux. This should, in the
fullness of time, allow many of the #ifdef PC98 in the tree.

# These files are in the public domain because there is insufficient
# creative content in them. When you customize them, please add a
# copyright notice and license.

OK'd in principle by: nyan@