[gssdp] (3 commits) Non-fast-forward update to branch wip/ipv6

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/ipv6' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c9519ea... wip: Add pktinfo handling for ipv6
  f7fa743... wip: Add max hops for v6
  20ba205... wip: Rewrite link-local locations
  3c02276... fixup! wip: Add pktinfo handling for ipv6

Commits added to the branch:

  ab9fb2a... wip: Add pktinfo handling for ipv6
  4419e59... wip: Add max hops for v6
  4ff5494... wip: Rewrite link-local locations