no support for keyboard {Page up} and {Page down} scrolling

[youcef-debbah]

Can you please add support for keyboard scrolling (Page-up and Page-down buttons)
I almost never use the mouse to scroll in IntelliJ (but I still use your cool plugin for such rare occasions :3)

I can disable the keys binding from IntelliJ and map the keys Page-up/Page-down to mouse wheel-up/wheel-down events using Auto Hotkey but I don't really like this solution :/ (sorry for the troubles...)