debian packaging scripts

Packaging scripts for use with Debian GNU/Linux. Packages for amd64 (i386 and armhf are currently beeing built), in case you wonder: http://apt.nanolx.org/pool/main/l/lumina-desktop/

Almost complete, TODO:
- add long descriptions for packages [soon]
- use /usr/lib/${multiarch}/ in favour of /usr/lib/ [not-so soon]