Update for d3 v4
Update for d3 v4

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