GF-1835: moonraker: slidersample: slider 2: the blue hightlight bar doesn't follow the orange bubble's move
GF-1835: moonraker: slidersample: slider 2: the blue hightlight bar doesn't follow the orange bubble's move

added LabeledToggleButton to show/set slider2's lockBasr property

mcanthony/moonstone,mcanthony/moonstone,enyojs/moonstone,mcanthony/moonstone