Modifying the urdf to match with the actual world
Changing the default parameters with respect to the new scene
Fixing the param loader
Adding textures to the table+rail visualization
Adjusting camera calibration
Adding tf visualization in rviz
Putting initial rail position on the other side of the table
Creating the cameras frames inside the urdf
Fixing textures
Adapting the bin size to the real ones
Cleaning calibration package of old files
Merge branch 'excel_description' into hydro

Conflicts:
	excel_cameras/launch/35_camera.launch
	excel_cameras/launch/45_camera.launch
	excel_description/urdf/table_rail.urdf.xacro
Altering joint limits back to the originals and creating a new

xacro urdf, excel_robot_moplan.urdf.xacro, which allows you to
manually set all of the joint limits, without having to completely
copy the URDF.