Move dropdown to bootstrap 4
Move dropdown to bootstrap 4

petervanderdoes/wger,rolandgeider/wger,wger-project/wger,wger-project/wger,wger-project/wger,petervanderdoes/wger,rolandgeider/wger,petervanderdoes/wger,rolandgeider/wger,rolandgeider/wger,petervanderdoes/wger,wger-project/wger