Xv 11.launch

<!--
  Launcher for the Neato XV 11 LIDAR.
  -->
<launch>
    <node pkg="xv_11_laser_driver" 
          type="neato_laser_publisher" 
          name="neato_laser_publisher"
          respawn="true" 
          output="screen">
        <param name="port" value="/dev/ttyUSB0"/>
        <param name="firmware_version" value="2"/>
        />
    </node>
</launch>