2.18.4 Stuff:

- Fix for CVE-2007-3381, a denial of service attack where the
 user can crash the GDM daemon with a carefuly crafted
 GDM sockets command and cause GDM to stop managing future
 displays.  GDM now is much better about safegarding against
 NULL values returned from g_strsplit calls.  (Brian Cameron)

- Remove setting hints.ai_family != AF_INET6 to fix bug #455190.
 (Brian Cameron)

- Translation updates (Priit Laes)