lvm: install thin utils for non-hostonly
*/module-setup.sh: add comments for dracut called functions
10i18n/parse-i18n.sh: parse rd.vconsole and rd.locale

and removed systemd part, because parse-i18n.sh is not even installed in
systemd driven initramfs images.
dracut.sh: do not bail out, if kernel modules dir is missing

and only print a warning message
Doc: cleanup, extend and split and reuse
dmsquash-live: add /dev/mapper/live-base

This is similar to the reason for adding the
/run/initramfs/live-baseloop symlink -- access to the original live
image without overlays.

livemedia-creator does not create a osmin.img, so there is no mountable
device for it to use when rsyncing the live image to the target. It
needs a device that points to the original live image without overlays.

Note that lmc won't be creating osmin.img, since really isn't needed any
longer. Its purpose was to provide a minimal image that could be dd'd to
the target. Now that we use rsync this is no longer necessary.

The included patch adds a /dev/mapper/live-base device that Anaconda can
use whether or not there is an osmin present.