New class for Logitech Dual Action Gamepad

[Phazonmutant]

The buttons under the dpad on that stick are pressure sensitive and CAN output a value less than 1 if you press them lightly.

Ah, I hadn't considered that. I'd only seen 1 or -1.

You're absolutely right on all counts. I got a bit too into the argument xD

I updated the code I posted above to the original d-pad code.
Not a huge improvement over the original code, but worthwhile, I think.