Bluetooth Gamepad support is only available on devices, so I've clarified that in the readme.
Updating the Gamepad sample to detect the number of analog sticks provided by a connected gamepad.  Only analog sticks that exist will be drawn.
Some device info text was removed as currently no supported devices report their device and vendor ID as strings.
Removing L2, L3, R2, R3 buttons since no currently supported controllers include these and re-arranging the layout a bit.
Merge pull request #58 from ablake/next

Updating the Gamepad sample