Merge branch 'master' of ssh://roboclub.org/home/svn/scoutos
Overwrote the ROS sigint handler so now behaviours stop and die and stop motors upon exiting.
Updated line follow code to make turns for Lab 2.
Also upgraded at_destination and LineSensor::destination() for Intro Lab 2.
Added new at_destination functionality.
Maze turns are buggy and are the next order of business.
More fixes to launch scripts (poorly written by Tom ;)
Fixed launch script error
Removed headers, sonar uses custom timestamp, added code to manually update timestamp
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