We would be really happy if you want to contribute to any of our projects! Feel free to open issues or provide pull requests.
To ensure the best code readability and consistency we would kindly ask you to the provided code formatter if you contribute any code. In this repository you can find our cleanup and code formatter settings for our IDE of choice, Eclipse 4.6 Neon.
Of course you can provide code that isn't formatted regarding this guidelines but the possibility is high that we might ignore/reject your pull request without digging deep into your code.
If not stated otherwise code released on GitHub will be Apache 2.0