Added removeAllHighlights() method
Added removeAllHighlights() method

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