Add CC-BY license
Add CC-BY license

The Creative Commons Attribution license is now also an available option

rolandgeider/wger,rolandgeider/wger,rolandgeider/wger,DeveloperMal/wger,kjagoo/wger_stark,petervanderdoes/wger,kjagoo/wger_stark,kjagoo/wger_stark,DeveloperMal/wger,rolandgeider/wger,wger-project/wger,DeveloperMal/wger,petervanderdoes/wger,DeveloperMal/wger,wger-project/wger,kjagoo/wger_stark,petervanderdoes/wger,wger-project/wger,wger-project/wger,petervanderdoes/wger