- 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

MFp4:
Remove unused ATAPI definitions, conflicting with ata.h.

Submitted by: scottl

Import new version of the HPTMV driver from Highpoint. The major change
here is the support for amd64, as well as possible support for PAE. Many
thanks to Highpoint for continuing to support FreeBSD.

Obtained from: Steve Chang @ Highpoint
MFC After: 3 days.

Move all of the hptmv files to /sys/dev/hptmv so that they won't be mistaken
for being on a CVS vendor branch. The files were moved via a repo-copy.

Import the HighPoint RocketRAID 182x driver. Thanks to HighPoint for
providing the original driver, and thanks to IronSystems for providing
hardware for testing.