CloudMade ends 

Hey,

CloudMade will discontinuing their tiles for non-enterprise users in next weeks, so let's move to other tile provider. With this change we can change to [Lzrk](https://geodienste.lyrk.de/) which provides 250.000 tile views per month for free to community (non-commercial) projects.

BTW: Pushing your API-Key to github isn't the best idea. Everyone knows best practices to handle this? This project doesn't contain every build process, so i don't know how to deploy this with gh-branches. Otherwise everbody can read the api key from the production source anywhere. Mhmm.