Camshift follow.launch

<!--
  Video follow using Camshift
  -->
<launch>
    <include file="$(find floor_hugger)/launch/usb_video_streaming.launch"
        />

    <include file="$(find floor_hugger)/test/motor_control_hack.launch"
        />

    <node pkg="follow" 
          type="cam_shift_tracker" 
          name="cam_shift_tracker" 
          respawn="true" 
          output="screen" />

    <node pkg="follow" 
          type="move_it_pid" 
          name="move_it_pid" 
          respawn="true" 
          output="screen" />

</launch>