Bug#798564: debootstrap: Add scripts for kali releases

[Raphaël Hertzog <hertzog@debian.org>]

Package: debootstrap
Version: 1.0.72
Severity: wishlist
User: devel@kali.org
Usertags: origin-kali
Control: block -1 by 798562

Hello,

I'd like debootstrap to have native support of the various kali releases.
We don't need any special script compared to Debian except that we use a
different keyring and a different default archive.

In our forked package we do this currently:

override_dh_auto_build:
        # Update kali script based on the debian one
        (echo "default_mirror http://http.kali.org/kali";; sed -e "s/debian-archive-keyring.gpg/kali-archive-keyring.gpg/g" scripts/sid) >scripts/kali

So we need the above "base" script and then the following symlinks:
- moto
- sana
- kali-current
- kali-next
- kali-rolling
- kali-dev

That's all. You can either include the above hack or fix #798562 so that
we have a better way to share the bootstrapping code between Debian and
derivatives (my preference goes for the latter, hence the block but it's
definitely not mandatory).

Cheers,
 Raphaël.