Bug#869943: gdm3: Adapt to gnome-settings-daemon 3.24

[Jeremy Bicha]

Package: gdm3
Version: 3.22.3-4
Severity: important
User: pkg-gnome-maintainers at lists.alioth.debian.org
Usertags: gsd324

gdm3 includes a gnome-session file to display the login screen.
gnome-settings-daemon 3.24 has split itself into separate binaries and
the gnome-session file
will no longer work.

gdm3 3.24.2-2 in experimental has already fixed this issue so we
should just upload it to unstable.

We intend to upload gnome-settings-daemon 3.24 to Debian unstable
about 10 days from now on Sunday, August 6.

I suggest uploading the fix to the DELAYED queue for that date so that
this transition will be easy and smooth.

On behalf of the Debian GNOME team,
Jeremy Bicha