Merge branch 'sound' into link

gframe/game.h

@@ -123,7 +123,7 @@ public:
 	void CloseDuelWindow();
 	void PlaySoundEffect(int sound);
 	void PlayMusic(char* song, bool loop);
-	void PlayBGM(int mode);
+	void PlayBGM(int scene);
 
 	int LocalPlayer(int player);
 	const wchar_t* LocalName(int local_player);

system.conf

@@ -27,7 +27,7 @@ draw_field_spell = 1
 separate_clear_button = 1
 #auto_search_limit >= 0: Start search automatically when the user enters N chars.
 auto_search_limit = 0
-prompt_to_discard_deck_changes = 1
+ignore_deck_changes = 0
 enable_sound = 1
 enable_music = 1
 #Volume of sound and music, between 0 and 100