Update worldobject.h

src/datalink/worldobject.h

 #include <vector>
 #ifndef ROBOT_MODELS_WO_H
 #define ROBOT_MODELS_WO_H
-#include </home/nikhil/panda_gazebo_workspace/src/zero/src/datalink/quaternion.h>
+#include "quaternion.h"
 using namespace std;
 class worldobject
 {
 
 
 public:
-     vector<float> p1,h3;// saw no purpose of using h3 here in WO ,its used seperately in hand class
+     vector<float> p1;// saw no purpose of using h3 here in WO ,its used seperately in hand class
+
      std::string name;
      double x,y,z,w;
     //no need of constructor here