fix tray/tray_textured4.obj and tray/tray.urdf fix kuka_with_cube.py allow both IK /end-effector control and joint-space control in kuka environment, use 1./240. sec. step and 150 solver iter bump up pybullet to 1.1.7
fix tray/tray_textured4.obj and tray/tray.urdf fix kuka_with_cube.py allow both IK /end-effector control and joint-space control in kuka environment, use 1./240. sec. step and 150 solver iter bump up pybullet to 1.1.7