Changed the name of ackermann_controller.py to ackermann_controller. This was done because the catkin documentation states that executable script names generally do not include a .py suffix. Scripts, configuration files, and launch files are now installed.
Changed the name of ackermann_controller.py to ackermann_controller. This was
done because the catkin documentation states that executable script names
generally do not include a .py suffix. Scripts, configuration files, and launch
files are now installed.

droter/ackermann_vehicle