SDL_Mixer 1.2.7

Patched to add .uni playing capabilities

- Added mikmod\load_uni.c from libmikmod-3.1.9.tar.gz

- Modified mikmod\mlreg.c, void MikMod_RegisterAllLoaders_internal(void) :

#if 1
	_mm_registerloader(&load_it);
	_mm_registerloader(&load_mod);
	_mm_registerloader(&load_s3m);
	_mm_registerloader(&load_xm);
+	
+	// Added by François to have load .uni files
+	_mm_registerloader(&load_uni);
#else
	_mm_registerloader(&load_669);
	_mm_registerloader(&load_amf);
	_mm_registerloader(&load_dsm);
