Renumbered chap 14-21 ; Inserted ch 14
Ch6 - introduced web viz, added overview of communication threads; fixed ESN for engineering units.
ch9 - added touch sensor data structure
Ch11 - introduced web viz
ch14 - added stub to hold web-viz protocol information
ch16 - described a sound detector
ch18 - updated how the time of flight distance and visually estimated distance may be blended.
Ch28 - react to sound behavior
Ch30 - expanded description of how the update-engine decides to allow or disallow updates
Apx D - clarification
…red for upcoming web-viz chapter
Renumbered chap 14-21 ; Inserted ch 14 Ch6 - introduced web viz, added overview of communication threads; fixed ESN for engineering units. ch9 - added touch sensor data structure Ch11 - introduced web viz ch14 - added stub to hold web-viz protocol information ch16 - described a sound detector ch18 - updated how the time of flight distance and visually estimated distance may be blended. Ch28 - react to sound behavior Ch30 - expanded description of how the update-engine decides to allow or disallow updates Apx D - clarification