Added scrolling that mimics the PAGE UP/DOWN keys by clicking on the empty space on the scrollbar
Added scrolling that mimics the PAGE UP/DOWN keys by clicking on the empty space on the scrollbar

haolee1990/trackpad-scroll-emulator,jnicol/trackpad-scroll-emulator,dmxfee/trackpad-scroll-emulator,chrismoulton/trackpad-scroll-emulator,dmxfee/trackpad-scroll-emulator,haolee1990/trackpad-scroll-emulator,sixthedge/trackpad-scroll-emulator,sixthedge/trackpad-scroll-emulator,chrismoulton/trackpad-scroll-emulator