- 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)

MFH (r292206): upgrade to Unbound 1.5.7
MFH (r292135): run configure script with correct compiler

MFH (r287917, r287918, r289063): upgrade to latest Unbound
MFH (r283301, r289592, r291582): rc script improvements
MFH (r287880): respect manually configured forwarders when using DHCP
MFH (r289321): deconfuse man page

PR: 184047 203580 204931

Upgrade to Unbound 1.5.4.

import unbound 1.5.4

import unbound 1.5.0

nuke autprops

import unbound 1.4.22