xbox 360 wirelss receiver fix

A xbox 360 controller wireless receiver (http://support.xbox.com/en-US/xbox-on-other-devices/connections/xbox-360-wireless-gaming-receiver-windows) reports itself as "Xbox 360 Wireless Receiver" (typically) or "Microsoft Corp. Xbox 360 Wireless Adapter" (possibly) so it's detection should not contingent on finding "Microsoft" in the name string.
Its d-pad reports different button codes than a wired 360 controller so we need a new configuration for this pad.
add wireless 360 controller receiver default map
Merge pull request #759 from l3iggs/wireless360receiver

fix up XBox 360 controller wireless receiver