A script to do a debootstrap install of Devuan ASCII.

I wrote this long ago to install Devuan ASCII on my desktop and my remote
server.  It's full of stuff that is specific to my needs.  It may be
educational to someone.  I did intend to document it, but I got busy with
other stuff.

It assumes the existance of a fileSystem.tar.xz, which is a base file
system containing various configuration and data files.  All of it is
specific to me, and likely isn't actually needed.  Feel free to make up
your own.