- 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

Change register numbers according to current struct reg and
struct fpreg in src/sys/mips/include/reg.h

Adds the missing mips gdb files that I
foobar'd on my last commit.. Sorry about
that JC.. my fault.

Obtained from: JC