* Test programs use project references instead of hard-coding SDL library dependencies
* Test data files are copied only when needed.
* Copying SDL2.dll is no longer necessary
* Fixed /SAFESEH warning
* Fixed attempted rebuild of SDL every time a test program is run
- Updated Visual Studio 2010 project with SDL 2.0 library names
- Don't use a 256 byte LUT, but rather <32 bytes of data on the stack.
- Cleanups in SDL_gamecontroller.h
