- 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 Revisions:
256549: man-page updates
256551: .Dd bump in manpage
256553: bootenv -> ROOT fix
257842: monster list of fixes
257843: minor touchup
257844: copy install log
257845: fixup to last
257872: mdoc fixup
257939: debug check
258021: MBR bootcode fixup

Reviewed by: many
Discussed on: -current
Approved by: re (hrs)

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

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

Fix a whitespace nit

Reviewed by: bz

Fix WPA setup broken by changes to shell argument passing inside the
installer network configuration.

PR: bin/159558
Approved by: re (kib)

Fix two problems:
1) if no default gateway is given the route command will fail
and the script will abort with an error leading to an endless
loop unless configuration is cancelled or changed. [1]
2) In the IPv6 case add -inet6 to not alter the legacy IP default
route.

Reported by: Oleg Ginzburg (olevole olevole.ru) [1]
Tested by: Oleg Ginzburg (olevole olevole.ru) [1]
Approved by: re (kib)

To inet or not two inet. Unbreak static IPv4 configuration. If you tried
you were stuck in an endless loop.

Reported by: kensmith
Approved by: re (kib) for BETA1
Pointy hat to: bz - wonder why I had not tested legacy IP thoroughly..

Write the multi step netconfig to a temporary file and only move that
to the final name if netconfig was completely finished. This fixes
reentrance problems even better than r222611.

Suggested by: nwhitehorn
Reviewed by: nwhitehorn
Sponsored by: The FreeBSD Foundation
Sponsored by: iXsystems

Split netconfig into three parts:
- netconfig - what auto will call which in turn will check for
IPv4 and IPv6 to be available and ask the user to configure it
by calling
- netconfig_ipv4 doing DHCP and static IPv4 addresses, and
- netconfig_ipv6 doing rtsol and static IPv6 addresses,
and then checking, querying and updating resolv.conf upon return.
Both DHCP and rtsol (in the future) might update resolv.conf already so
we seed ourselves from that file if available.

Reviewed by: nwhitehorn
Sponsored by: The FreeBSD Foundation
Sponsored by: iXsystems