message: Add event as second param to RangeSlider onChange function
diff: @@ -16,12 +16,12 @@ export default class RangeSlider extends Slider {
  static defaultProps = Slider.defaultProps;
  - onStart = (e) => {
  + onStart = e => {
  const absolutePosition = this.validateAbsolute(e.startX - this.state.containerLeft);
  const percentPosition = this.absoluteToPecent(absolutePosition);
  const percentRange = this.calcPercentRange(percentPosition);
  - this.onChange(this.percentToValue(percentRange));
  + this.onChange(this.percentToValue(percentRange), e.originalEvent);
  if (this.isControlledOutside) {
  this.setState({startX: absolutePosition});
  @@ -46,7 +46,7 @@ export default class RangeSlider extends Slider {
  const percentPosition = this.absoluteToPecent(absolutePosition);
  const percentRange = this.calcPercentRange(percentPosition);
  - this.onChange(this.percentToValue(percentRange));
  + this.onChange(this.percentToValue(percentRange), e.originalEvent);
  if (!this.isControlledOutside) {
  this.setState(percentRange);
  