Waypoint Following

Contribution in waypoint_following directory

Procedure for running:

1. roscore
2. rosrun rosserial_python serial_node.py /dev/ttyACM0
3. rosrun week1tutorial talker.py
4. rosrun urg_node urg_node _ip_address:=192.168.1.11
5. roslaunch hector_slam_launch tutorial.launch
6. Move car around to generate map. Use "Publish Point" in RVIZ GUI to click and publish (to \clicked_point) desired waypoints. Hard-code these waypoints into waypointFollower. Unplug display and peripherals.
7. rosrun waypoint_following waypointFollower