improved ModifierFlag manipulation when key up
improved ModifierFlag manipulation when key up

miaotaizi/Karabiner,astachurski/Karabiner,wataash/Karabiner,wataash/Karabiner,e-gaulue/Karabiner,runarbu/Karabiner,miaotaizi/Karabiner,miaotaizi/Karabiner,wataash/Karabiner,runarbu/Karabiner,muramasa64/Karabiner,muramasa64/Karabiner,tekezo/Karabiner,astachurski/Karabiner,muramasa64/Karabiner,e-gaulue/Karabiner,miaotaizi/Karabiner,astachurski/Karabiner,e-gaulue/Karabiner,muramasa64/Karabiner,e-gaulue/Karabiner,chzyer-dev/Karabiner,tekezo/Karabiner,chzyer-dev/Karabiner,runarbu/Karabiner,chzyer-dev/Karabiner,astachurski/Karabiner,chzyer-dev/Karabiner,wataash/Karabiner,tekezo/Karabiner,runarbu/Karabiner,tekezo/Karabiner