Always install firmware packages.

Ie. removed check if ARCHIVE_AREAS non-free. We do always need non-free.
Merge branch 'master' of github.com:ypcs/digabi-live

* 'master' of github.com:ypcs/digabi-live:
  Added notes about vagrant ssh/VMware dhcp issues.
  Added support for building single stage(s) inside buildbox.
Initial conversion into native Debian package.
Install all previous files using make install.
Updated changelog.
Added postinst/prerm for disabling/enabling autostart of OpenSSH server.
Releasing.
Added template for sources.list.
Rewritten debug command: upgrade system.
Added README.
Updated changelog.
Use postrm for modifying init scripts.