get a continuous-integration infrastructure

[k9ert]

As tests are soon to arrive in master, any ideas on infrastructure for continuous integration?
Do we want to use Travis-CI? It's cool and hip but it's a service which is difficult to migrate off from.

What about using gitlab? I made good experience with the public gitlab service and an own gitlab-runner.
A huge advantage is it's flexible model of using own components combined with as-a-service from gitlab.
I could do a POC but if you already have strong opinions there, i wouldn't!

[justinmoon]

I haven't put together CI in a few years. Ideally we could get a setup that runs tests on linux, mac and windows. The cross-platform aspect of this project will be tricky ...

By all means, try a POC. I don't want to move git repo to gitlab. Try to get a POC that can run the backend unittests on Windows. That would be extremely helpful.