- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

Various whitespace and style fixes.

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.

$Id$ -> $FreeBSD$

Distinguish EPP address/data register. Add EPP address register access to ppi.

Change microseq offsets. Previously, offsets of the program counter where
added to the index of the current microinstruction. Make them rely on the
index of the next executed microinstruction.

Suggested by: Luigi Rizzo <luigi@labinfo.iet.unipi.it>

Actually implement the internals of the 'ppi' device.

It is now possible to control the various parallel port signals from
user-space programs without having to resort to opening /dev/io
directly.

New directory and drivers for Parallel Port Bus devices.
Submitted by: Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>