Some clean up, web version prepare

src/CharacterState.cpp

@@ -1,6 +1,6 @@
 #include "CharacterState.h"
 
-namespace ZL {
+namespace FRG {
 
 bool CharacterState::isMoving() const {
     Eigen::Vector3f toTarget = walkTarget - position;
@@ -92,4 +92,4 @@ void CharacterState::load(const nlohmann::json& in)
     onArrivedCallbackName = in.value("onArrivedCallbackName", std::string());
 }
 
-} // namespace ZL
+} // namespace FRG