Missing releases and state of 3.33.90

[Olav Vitters <olav vitters nl>]

Hi,

I had various issues packaging GNOME 3.33.90. It seems that there's
various modules which haven't made a release, e.g.:
- no gdm 3.33.90
- no gnome-session 3.33.90

Further, gnome-shell 3.33.90 incorporates an gnome-desktop API/ABI (?)
change, but it doesn't actually check that gnome-desktop is new enough.

Especially with the various changes it would be nice to have a few more
checks in e.g. meson.

The packaging for this beta was quite a bit more involved than any other
.90 version (though having a stable GTK+ did ease things quite a bit). I
didn't notice much discussion so I'm also wondering if it was just me
facing various issues?

-- 
Regards,
Olav