Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Update libsdp to the latest 1.1.108-0.17.ga6958ef.

The only relevant change here is the support for IPv6 in the config
file. The previous version of this supported IPv6 but not in the
config. The change for that ended up removing __sdp_sockaddr_to_sdp
which the IPV4 config code required; the IPv6 fix resolved the lack of
that symbol.

Note that the ChangeLog was lacking entries for which we already had the
changes for, which itself was an upstream bug.

Obtained from: https://www.openfabrics.org/downloads/libsdp/libsdp-1.1.108-0.17.ga6958ef.tar.gz
Sponsored by: EMC / Isilon Storage Division