Top item is no need to set a default. Also, this is no longer
possible, as some items are not available for all grub variants.

mkimage to run сlean/distclean successfully requires .work/.cache
and .work/.out directories.

If GRUB_UI variable is set, the gfxterm config will be added, which
in turn will lead to a build error on an unsupported architecture.

Suggested by mvb@.

Use our own volumes profile instead of volumes-profile-regular:
it's simple and we are fixed some issues in that way:
- Don't create RAID.
- ALT bug #34520.

But don't install it by default.
Requested by black@.

But don't install them by default.
Requested by black@.

Therse is several managing tools, so use plural form.

Requested by jqt4@: samba group policy doesn't work without it.

It's duplicating commit e8694a6df4fc48b5f8fa5f5e9b387647b3ee1fca
in sem@'s tree -- I don't pull workstation/extras into e2k images
due to too many of those being simply unavailable for now; still
let the black@'s wish for this AltHa control knob be honoured.

Requested by black@.

Should it use/browser/chromium in the first place?

No need to switch udisks2 into "shared mode" anymore;
see the previous commit.

gvfs had some multiseat support but wasn't quite there
in practice so we had to fallback from media automount
to "your flash drive is available for mounting" which
was much better than an e.g. 6-seater lottery "who wins
to get the drive automounted and presented, and who --
all the rest -- gets an error message in the face".

Just drop these.

There might be a more generic approach
but let's at least make this possible
in the first place.

Now that 8CB based workstations start pouring in,
let's prepare the configuration for 1E8CB mobos
(3 PCIe slots so 1/2/3-seaters possible and tested).

...well at least ARM WINE is not that popular.

...so it supports H.264 media; should be fixed
by making it use ffmpeg4 some day hopefully.

See-also: http://html5test.com
Reported-by: http://domination.one

...to the multiseat target.