Changed uSound.pas so that music will still play if music is enabled and sound is disabled. Effectively, isSoundEnabled represents only sound effects and does not include music (and I have replaced the places where both are concerned with a logical combination of the two). Still need to figure out why isSEBackup is used and if my changes affect it.

#ifndef _SDLname_h_
#define _SDLname_h_

#if defined(__STDC__) || defined(__cplusplus)
#define NeedFunctionPrototypes 1
#endif

#define SDL_NAME(X)	SDL_##X

#endif /* _SDLname_h_ */