Thorough(!) remodeling of the arch/ directory and the contents therein; fixed link-time warnings on GCC and should make things a lot easier to manage. A pile of other random things too, mostly cleanups and getting things to work with the remodeled arch/ directory.

stepmania/src/arch/InputHandler/InputHandler_Linux_Joystick.h

@@ -16,6 +16,7 @@ public:
 private:
 	int fds[NUM_JOYSTICKS];
 };
+#define USE_INPUT_HANDLER_LINUX_JOYSTICK
 
 #endif