- 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

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

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

Start each of the license/copyright comments with /*-

Add definitions for the task management codes sent in SPI4
command information units.

scsi_message.h:
Include PPR option bits defined in SPI4.

scsi_iu.h:
Add data structures releated to parallel SCSI information units
for use in SPI4 packetized protocol.