This feature complements the live image of the second stage with installation
image-specific settings and scripted hooks.

It is recommended to connect using +live-installer to ensure that a typical set
of installer-related features is included.

Unlike the install2 feature, a separate image of the second stage of 'altinst'
is not built, but the live image is supplemented with installer packages in
order to reduce the total volume of the iso image.

Installation consists of two stages:
1. The live image is unpacked, as in livecd-install
2. Install additional packages BASE_PACKAGES and package groups THE_GROUPS as in install2.

Unlike install2, only those packages that are not in the live image are placed in the main repository. This is how the size of the iso image is reduced.

It is customary to set a variable without the GLOBAL_ prefix. It
is added to the name when exporting.

I made by analogy use/cleanup/live-no-cleanup-docs.

Since both targets have long names and are needed together,
i made use/live/no-cleanup.

Use target use/live/no-cleanup should be used instead of:

@$(call set, GLOBAL_LIVE_NO_CLEANUPDB, yes)

If set then don't remove apt and rpm from live images.

...for those images that can be installed.

This script was completely careless regarding the chance
to meet an empty variable resulting in plain "rpm -qa"
and subsequent attempt to, well, remove *all* packages.

Thanks zerg@ for being persistent this time, even if
he could probably find the culprit and send in this patch.
:)

The same that was done by commit 50bfea9d.
Note the duplication, maybe worth to split off...

There's much reason for reuse instead of duplication
among the different stage2-based subprofiles.

In particular, the rather monolithic driver cleanup script
of the ancient is better done in several clear pieces with
the final depmod run.

Scripts dropping apt/rpm databases will dump pkglist first.

A script purging /boot/* will honour live-install if present.

Minor inno^Wfixups all over the map too.

Thanks someone for review and feedback:
http://www.opennet.ru/openforum/vsluhforumID3/83728.html#136

Better cleanup and i18n controls are due but in the meantime,
let's at least build something actually useful.