Some clean up, web version prepare

src/MenuManager.h

@@ -13,9 +13,9 @@
 #include "render/FrameBuffer.h"
 
 // Forward-declared here to avoid pulling Game.h into MenuManager.h.
-namespace ZL { struct SaveSlotInfo; }
+namespace FRG { struct SaveSlotInfo; }
 
-namespace ZL {
+namespace FRG {
 
 	extern const char* CONST_ZIP_FILE;
 
@@ -343,4 +343,4 @@ namespace ZL {
 
 	};
 
-} // namespace ZL
+} // namespace FRG