Create nightly distro packages

Breaking off from #81...

I have openSUSE build working (download instructions).

I have fedora and openSUSE builds working (download instructions).

I have script created (which I need to commit somewhere, putting in package repo almost seems right, but not quite...I'll consider it). The script can be setup on cron, pick the latest commit, update package repo and .spec file for latest commit tar ball, and push changes to repo to trigger build. I'll get that setup on remote server in the future, could possible be done via travis as well.

It may also make sense to move to something like home:boombatower:openage as the repository? I was originally branching games repo since that was my target, but on my request to move into official games repo it was suggested that non-playable games are probably not a good idea.

It would be slick if we did the necessary work to support building for .deb packages. https://en.opensuse.org/openSUSE:Build_Service_Debian_builds Perhaps someone is familiar with deb packaging? Then we can get nightly builds for all major distros from one place!

Open Build Service (OBS) is great in that it provides the familiar fork/branch and pull request workflow for packaging in addition to allowing us to package for all major distros in one place. Can even make changes through web interface!

Start by reviewing issue #81 and the linked Open Build Service project pages. The issue does not name a repository location, automation entry point, tests, or a committed script, so first determine the packaging and CI structure and where nightly automation belongs. Done would mean an agreed setup that updates package sources and produces nightly distro packages, including the proposed Debian support.