Reworked add/remove/hasClass and code relying on them
Reworked add/remove/hasClass and code relying on them

yangdm2015/vue-rangy,KamiHQ/rangy,timdown/rangy,sashless/rangy,wotzisname/rangy,KamiHQ/rangy,brymacto/rangy,sashless/rangy,yangdm2015/vue-rangy,shuizhongyueming/rangy,wotzisname/rangy,djbuch/rangy,izhan/rangy,timdown/rangy,etodd/rangy,lpsBetty/rangy,lpsBetty/rangy,brymacto/rangy,izhan/rangy,emil-mi/rangy,zimme/rangy,etodd/rangy,djbuch/rangy,GerHobbelt/Rangy,emil-mi/rangy,shuizhongyueming/rangy,GerHobbelt/Rangy,zimme/rangy