It is actually an effort by glebfm@ to create an experimental
systemd-based Simply Linux LiveCD; I merely reviewed the original
diff, moved kernel related bits to firmware (see preceding commits)
and introduced a dedicated pkglist namespace by creating a directory.

So far the tagged scripts concept is too fragile,
and these were used unconditionally anyways.

features.in/Makefile is broken regarding copying
tagged scripts right now...

- get rid of $dest
- work on features.in/syslinux
- README++