[gdm] (27 commits) ...one more time

[Tomas Bzatek]

Summary of changes:

  de6fb34... Fix crasher do to size calculation bugs (*)
  431b91a... Add support for postlogin stack (*)
  c1df96f... Build pam changes (*)
  1870e02... Add back session chooser (*)
  ae24a6d... rev release (*)
  5e345b2... add forgotton patch (*)
  e9a3329... - Fix user list async bugs by dropping async code and   mov (*)
  c2e00d9... Fix empty user list. (*)
  e2a1042... s/user-list/userlist/ (*)
  4b6f239... Update to 2.91.91 (*)
  0d199ea... Clean up BRs (*)
  e348bcb... Drop gnome-panel dep, not used anymore (*)
  388b03c... Update to 2.91.92 (*)
  f10ad39... Update sources for release (*)
  c8809ff... Add missing build requires (*)
  ae14656... Update to 2.91.93 (*)
  2139ff7... Update sources (*)
  bf0ae7e... Fix autologin crash (*)
  4f9615b... Update to latest release (*)
  6498368... 3.0.0 (*)
  b43821f... Yay, fedora (*)
  78b2118... Yay, fedora (*)
  fdda6d4... Fix BRs (*)
  77b502f... fix BRs (*)
  60c17d7... still collecting BRs... (*)
  2c77dc5... More BRs... (*)
  e71096b... one more time (*)

(*) This commit already existed in another branch; no separate mail sent