Enable travis-ci

[anodium]

The title says it all; why not setup Travis on this repo? Then we could have automated builds for everything we merge in. It's also free for open source projects. Though we might have to solve #2 first.

[JayFoxRox]

Long term: yes; but ideally we should have actual gameplay / logic first.

Also travis clones the repo every time (and I don't think our workflow is fast enough for the travis cache either). So we should also split data and code repositories using a data-submodule.