version 0.4

Added getMaximumSize() method to main class - fixes BoxLayout layout issues.

version 0.3

Fixes an annoying little jiggle seen when dragging the minimum
through the highlighted region.
Also fixes the bevel on the track being overwritten.

version 0.2

Changed set*MaximumAndMinimum to set*Range
Changed default track colour to be a bit less intense
Added built-in adjustment event time-throttling

version 0.1

First release