* Introduce LPD3DRM_APPDATA typedef for setting d3drm appdata
* Fix warning about assigning const string literals to variable char pointers
* Don't cast pointers to integers on non-32-bit architectures
* memset 2nd argument is int
* Assume cpuid is available on x86_64, needs testing on i386 and unavailable on anything else
* Store HFILE in its own member variable
