[FFe] gdm 3.5.90

I'd like to upload GDM 3.5.90. The current version in the archives, 3.0 is rather dated and isn't really supported. Upstream has made quite a few changes in the 3 release cycles since 3.0, and Debian is shipping 3.4. GDM 3.5 will also be needed if we want to upgrade gnome-shell past 3.5.4 as gnome-shell now hard-depends on APIs (for the new lock screen mostly) which currently aren't satisfied by any other display manager.

I considered uploading this before feature freeze but as there were multiple high-priority bugs that needed fixed, I thought it would be better to wait until those were resolved.

My plan is to upload to -proposed and wait to push it into the regular archives after a few more people have verified that it works.

GDM NEWS
http://git.gnome.org/browse/gdm/tree/NEWS

Debian Changelog up to 3.4
http://packages.debian.org/changelogs/pool/main/g/gdm3/current/changelog

And here's the Ubuntu-specific changelog. We're going to add a few more git patches to fix some bugs.

gdm (3.5.90-0ubuntu1) UNRELEASED; urgency=low

  * New upstream release
  * Sync with Debian. Remaining changes:
  * debian/*:
    - rename the package from gdm3 back to gdm
    - comment out everything from debian/greeter.gsettings
      to get the Gnome Shell experience
  * debian/rules, debian/gdm.{postinst,postrm,init}:
    - change back user/group from Debian-gdm to gdm
    - update the lib name and gir path from libgdmgreeter to libgdm
    - update pam profile name after the upstream rename of
      gdm-welcome to gdm-launch-environment
   - symlink gdm-password pam profile to gdm (LP: #1042052)
  * debian/gdm.install:
    - don't install debian/Xsession, prefer the upstream version
  * debian/rules:
    - drop --with-selinux (unrecognized options) and --with-pam-domain
      (unknown without 10_gdm_pam.patch - dropped below)
    - add --with-initial-vt=7 (see 06_first_vt.patch)
    - add --without-systemdsystemunitdir
    - add --with-consolekit-directory
  * debian/control*:
    - update to Standards-Version 3.9.3, no additional changes needed.
    - add libplymouth-dev to build-depends
  * debian/patches/*:
    - 04_reload_config.patch: dropped, applied in new version
    - 05_debug_xserver_core.patch: dropped, applied in new version
    - 06_first_vt.patch: dropped, replaced with --with-initial-vt=7
    - 07_libexec-paths.patch: updated
    - 08_frequent-users_greeter.patch: updated
    - 09_default_session.patch: updated
    - 10_gdm_pam.patch: dropped
    - 16_xserver_path.patch: dropped
    - 17_switch_on_finish.patch: dropped, applied in new version
    - 18_parametrize_create_display.patch: dropped, applied in new version
    - 19_static_transient_display.patch: dropped, applied in new version
    - 20_switch_kill_greeter.patch: dropped, applied in new version
    - 21_static_display_purge.patch: dropped
    - 22_noconsole.patch: updated
    - 23_start_polkit.patch: dropped, applied in new version
    - 91_shell_version_control.patch: dropped
    - 92_gsettings_path.patch: dropped
    - 93_private_lib.patch: updated
  * Merge changes from Ubuntu 3.0.4-0ubuntu16:
    - add debian/gdm.upstart (updated to run the main binary, and
      update the dconf profile)
    - add debian/gdm.preinst
    - add debian/{xterm,xsession}.desktop
    - merge debian/{gdm,gdm-autologin}.pam
    - merge debian/gdm.config tweak for lightdm
    - merge debian/gdm.init changes
    - debian/patches:
      - add ubuntu_run_xsession.d.patch
      - add ubuntu_dont_catch_sigsegv.patch (updated)
      - add ubuntu_upstart_event.patch
      - add ubuntu_no_debug.patch
      - add ubuntu_xresources_is_a_dir.patch
      - add ubuntu_no_LANG_setting_in_Xsession.patch (updated)
      - drop ubuntu_plymouth.patch (upstream)
  * TODO: the following Ubuntu patches need to be ported:
    - 30_don_t_save_failsafe_session.patch
    - 33-multi-keyboard-layouts.patch
    - 42_no_ecryptfs_autologin.patch
    - ubuntu_guest_session.patch