2.8.0.7 stuff:

- Changes to peeking VT freeness in 2.13.0.1 broke
  virtual terminal support on BSD.  This release
  corrects this problem.  (Brian Cameron)

- Correct Linux get VT logic so it returns the
  correct VT.  (Frederic Crozat)

- Now gdmlogin always uses GDK_RGB_DITHER_MAX
  when painting the background to ensure a nice
  background regardless of X configuration
  (e.g. X in 16bpp mode).  (Frederic Crozat)

- Now check for Xserver in prefix /usr.
  (J\303\274rg Billeter)

- Fix configure for Darwin.  (dmacks@netspace.org)

- Fix compiler warnings. (Frederic Crozat,
  dmacks@netspace.org, Brian Cameron)

- Ensure gnome.desktop and default.desktop have
  644 perms.  (Andrew Benton)

- Translation updates (Takeshi AIHANA, Runa Bhattacharjee,
  Dan Damian, Theppitak Karoonboonyanan, Inaki Larranaga,
  Priit Laes, Roozbeh Pournader, Alexander Shopov, Marcel
  Telka, Miloslav Trmac)