- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

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

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

o Remove @- from the ln and change it to a -sf. This was bogus, and
regocnized as such at the time. Now that the other bogons in the
tree have been fixed, we can remove this ugly kludge.
o Remove stale/bogus opt_foo.h files. These are left over from
by-gone resources. And they point to the need, yet again, to
improve the build system so meta information is only in one place.

Submitted by: ru
Reviewed by: bde
Approved by: re@ (jhb)

ppbus_if.c is necessary if you are loading submodules.

Drop <bsd.man.mk> support from <bsd.kmod.mk>.

Not objected to by: -current

Export symbols that constitute APIs defined by these
modules.

Note that in the case of 'mii' the API is not clearly
defined, and the symbols exported represent a subset
defined by current usage.

Add modules for lpt, plip, ppbus, ppi and pps.

Submitted by: j mckitrick <jcm@freebsd-uk.eu.org>