Merge branch 'vnext' into skrastev/more-fixes-5.0.0

Author: dkamburov

samples/charts/data-chart/radial-pie-proportional-category-angle-axis/src/index.tsx

@@ -39,7 +39,6 @@ export default class Sample extends React.Component<any, any> {
             <div className="container fill">
                 <IgrDataChart
                     ref={this.chartRef}
-                    legend={this.legend}
                     isHorizontalZoomEnabled="false"
                     isVerticalZoomEnabled="false">
                     <IgrProportionalCategoryAngleAxis