* XInput support for the DirectInput driver
The XBox360 controller driver for windows has a flaw where the DirectInput backwards-compatible driver registers dance pad arrows as a hat and will not allow opposite arrows to be pressed at the same time. This is not a problem in the XInput interface since the arrows are registered as a DPad and each arrow is a button.
This patch adds XInput support for the DirectInput driver. On initialization XInput controllers will be detected and registered first, followed by enumerating DirectInput devices. During DirectInput enumeration any XInput-capable controllers will be bypassed so that they aren't registered twice.
* Fix joystick input for xinput driver
Needed to compensate for deadzones, magnitude of the inputs, and that the Y axis was reversed.
* Remove unnecesarry using statement for vectors
Since many distros don't have packages for FFMpeg 0.10 yet, allow a static
prebuilt package to be specifiec with --with-static-ffmpeg=/path/to/ffmpeg.
Also recreate the functionality of ./Utils/build.sh to now pull FFMpeg 0.10.2
from the web, statically build it, and link it into Stepmania.
