Add target use/bootloader/uboot. Das U-Boot -- the Universal Boot
Loader, used on single board PCs (also in qemu).

Use bootloader lists to provide better portability and to avoid
overcomplicating bootloader switch.

Added restriction for alterator-$$(BASE_BOOTLOADER)) only for
ISO images. Since the new uboot bootloader is not supported in
Alterator and is not used when building ISO images.

Package lists for bootloaders available on supported platforms.

branding-*-bootloader package contains grub2 theme.

caffeine is not needed anymore as xfce-power-manager has a presentation mode.
newmoon browser is not maintained in ALT's repositories for quite some time.

Currently, only e2k requires specific disk partitioning.

INITRD_MODULES is reset further down the script.

Fixes: be75d3c3

elilo is available only for x86_64

Looks like the Provides: line is missing right now...

See-also: http://git.altlinux.org/tasks/archive/done/_225/231132/

- p9.mk, office feature and other enhancements/fixes (antohami@)
- education (cas@)
- simply (sem@)
- minor tidbits and major merge-up (me)

Set autologin parameters for lightdm in
/etc/lightdm/lightdm.conf.d/autoinstall.conf

It could result in a broken config given broken chroot state;
it's of no practical difference as both cases just won't work
but we can at least provide meaningful diagnostics (and a bit
of perfectionism, heh).

Fixes: 2527fe94da2e810cf5d52cf548f84456fd5a6b4d

These belong to power feature, if still.

It's only included in kde5 flavour anyways :-)

This feature ensures the availability and specification of the choice of
office package by analogy with the choice of browser. Additional options
may be set by explicit or indirect request.

Also added qasmixer in mixin/regular-xfce-sysv

...it's no more in Sisyphus

udev-alsa is not needed. Volume problems are no more.

...from Xfce-based distributions.

This one provides support for authenticating against ALT Domain.
Suggested-by: Andrey Cherepanov <cas@altlinux.org>

gdm3 and lightdm have their own startup services,
and can no longer be started via prefdm.
Other display managers still run through prefdm.

See-also: https://bugzilla.altlinux.org/36769

Removed in the upstream.

Suggested by cas@.