Fixed issue #221
Fixed issue #221

UPower daemon  does not have a option called power supply instead in "state"  it shows the state weather its charging or not.
KeyWeeUsr/plyer,KeyWeeUsr/plyer,johnbolia/plyer,johnbolia/plyer,kivy/plyer,kived/plyer,kived/plyer,kivy/plyer,KeyWeeUsr/plyer,kivy/plyer