Demonstrates:
    
    - Automatic sizing of the Timeline band "widths." (For a horizontal Timeline, a band's "width"
    is the height of the band on the screen.)
      - Note how the middle band is automatically made taller since its scale
    is larger and the event tapes are thicker, thus requiring more space for the events.
- Use mouse-wheel, arrow keys or links to move to 4400 (additional events which require a larger Timeline).
      Note how the Timeline enlarges when about 4200 becomes visible on screen. The size increase is animated.
 
- Changing the default theme
- Loading two different event files sequentially.
- Timeline starts at 1850 and ends at 4480
    
    Move Timeline:     
1900
        4400
    Timeline version .