- 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

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Properly fix the world breakage.

Unpollute the Makefile.inc's abuse of SRCS variable, and move
the generation of header files into include/ subdirecory.

Reviewed by: buildworld

Add SRCS= mk-mdmap.c and SRCS= wire-test.c to fix the world
breakage. amd has its own SRCS= that prevents bsd.*.mk to function correctly.

Submitted by: bmah
Reviewed by: peter

Set the default manual section for usr.sbin/ to 8.

$Id$ -> $FreeBSD$

DPDADD -> DPADD

bmake framework for contrib_amd