Bump version to 1.7b1
Bump version to 1.7b1

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