Bug#881297: An example debian package

[Steinar Bang <sb@dod.no>]

I currently use this self-packaged debian package:
 https://github.com/steinarb/karaf-deb-packaging

This debian package isn't built according to debian java standards so it
isn't immediately useful for a "real" karaf .deb package, but there may
be stuff in the installation scripts that could be borrowed.

I forked my github project from this project
 https://github.com/DemisR/karaf-deb-packaging
and did the following:
 1. Switched from Oracle Java SDK to openjdk
 2. Switched from using the proprietary karaf-wrapper to using the
    included init scrips (and later systemd)
 3. Tried using /var/lib/karaf
 4. Updated the karaf version several times


This document describe (in Norwegian, unfortunately), how to build the
.deb package on a debian system and then start karaf (steps 1, 2 and 3),
and then ssh into karaf (step 5), add an extra maven repository (step 6)
and use maven to provision and start a web application (step 7):
 https://github.com/steinarb/ukelonn#oppsett-av-webappen-på-en-server-med-debian-gnulinux