New pref to choose between Pov or Keys for D Pad, making it work
similarly to C Pad, C Stick and Touch.
Will automatically check whether vJoy has 4-way Pov or Continuous Pov
enabled and choose the correct one to output.
Removed the volume display from bottom screen and included some builds.
Maybe not an official version yet since I want to add something, but
we'll see.
