v0.12.1

> Radial, radialBargraph, RadialVertical, linear, linearBargraph,
windDirection
* Added initialisation parameter 'fullScaleDeflectionTime' default 2.5
seconds
* Change deflection time to be a proportion of fullScaleDeflectionTime,
with a minimum value of fullScaleDeflectionTime/5
> WindDirection
* Fixed cut'n'paste error in setValueAnimatedAverage to affected
value=360