- 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

On ARM EABI double precision floating point values are stored in the
endian the CPU is in, i.e. little-endian on most ARM cores.

This allows ARMv4 and ARMv5 boards to boot with the ARM EABI.

Silence a clang warning by telling it we are only interested in left
shifting the lower 32bits of the floating point value when we demangle it.

Import the FreeBSD/arm libc bits.

Obtained from: NetBSD