Fixed it up to look better.
Reverted starting controller in supervisor.
Turn off plotter in this example.
Week 3 specific changes.
Merge remote-tracking branch 'origin/coursera-week-2' into coursera-week-3
Made changes for demo.
Fixed incorrect use of wheel encoders.
Merged the wheel encoder fix.
Merge remote-tracking branch 'origin/coursera-week-2' into coursera-sp14
Merged from coursera-week-3.