set the mass of the pole and the forces properly

[oscar-lima]

• set the mass of the pole and the forces properly, but i can give you a list and might be easy to set it

[oscar-lima]

• set friction in https://github.com/socrob/acrobat_robot/blob/kinetic/acrobat_description/urdf/acrobat.gazebo lines 28,29
• set mass in https://github.com/socrob/acrobat_robot/blob/kinetic/acrobat_description/urdf/acrobat.xacro line 7. As for now is set to 1 kg
• force you set programmatically from your wrapper, right? just publish on /acrobat/joint1/effort/command the force that you want