- 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)

MFC 264696, 264721,

Add the deprecated fp{get,set}* functions, a few ports use them.

Rename the fp{get,set}* files so they no longer conflict with the
softfloat version of these files.

Rename the fp{get,set}* files so they no longer conflict with the softfloat
version of these files. Keep them within this directory so they can be used
to implement the armv6 version of these functions.

Add the deprecated fp{get,set}* functions, a few ports use them.