0.5.0

HiDPI scaling support
Changing the width/height props after mount now updates the component
onChangeEnd handler now optional
Added className and canvasClassName props

0.4.0

Added displayCustom, which allows ability to render custom component in the centre of the knob, if displayInput is set to false.
Added prop to disable mouse wheel action.
Added prop to add title attribute on the wheel.
Added ability to set height and width independently
Exposed mouseUp and touchEnd handler as onChangeEnd

0.3.0

Added boolean property disableTextInput
Switched touchStart from React SyntheticEvent to vanilla DOM event handler
Added preventDefault on touch events to stop unintentional scrolling
Added touchCancel handler

0.2.0

Added boolean property log to enable logarithmic scale mode
Fixed input coercing when step < 0
Added webpack config for development