- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r280264:
Define BINDIR for some test utilities.

Sponsored by: Mellanox Technologies

MFC r273774:
Make some infiniband example utilities easily buildable:
- Add new Makefiles.
- Add more include directories when building.
- Fixed a printf() formatting string.

Sponsored by: Mellanox Technologies

Make some infiniband example utilities easily buildable:
- Add new Makefiles.
- Add more include directories when building.
- Fixed a printf() formatting string.

MFC after: 3 days
Sponsored by: Mellanox Technologies