minor change: rename base_laser to base_laser_link in test xml.
minor change: rename base_laser to base_laser_link in test xml.

keulYSMB/urdfdom,shadow-robot/urdfdom,robotology-dependencies/urdfdom,shadow-robot/urdfdom,shadow-robot/urdfdom,shadow-robot/urdfdom,robotology-dependencies/urdfdom,keulYSMB/urdfdom,robotology-dependencies/urdfdom,keulYSMB/urdfdom,keulYSMB/urdfdom,robotology-dependencies/urdfdom