Some clean up, web version prepare

src/TeleportZone.cpp

@@ -2,7 +2,7 @@
 #include "render/Renderer.h"
 #include "render/TextureManager.h"
 
-namespace ZL {
+namespace FRG {
 
 void TeleportZone::initSparks(std::shared_ptr<Texture> activeTex, std::shared_ptr<Texture> inactiveTex)
 {
@@ -49,4 +49,4 @@ void TeleportZone::draw(Renderer& renderer, float zoom, int width, int height)
     if (sparks) sparks->draw(renderer, zoom, width, height);
 }
 
-} // namespace ZL
+} // namespace FRG