Put a proper scale limit on the bar icon

Minor cleanup

lib/timeline/component/graph2d_types/bar.js

@@ -23,13 +23,12 @@ Bargraph.drawIcon = function (group, x, y, iconWidth, iconHeight, framework) {
 
   DOMutil.drawBar(x + 0.5 * barWidth + offset, y + fillHeight - bar1Height - 1, barWidth, bar1Height, group.className + ' vis-bar', framework.svgElements, framework.svg, group.style);
   DOMutil.drawBar(x + 1.5 * barWidth + offset + 2, y + fillHeight - bar2Height - 1, barWidth, bar2Height, group.className + ' vis-bar', framework.svgElements, framework.svg, group.style);
-  //TODO: draw little points if drawPoints enabled.
 
   if (group.options.drawPoints.enabled == true) {
     var groupTemplate = {
       style: group.options.drawPoints.style,
       styles: group.options.drawPoints.styles,
-      size: barWidth/5,
+      size: Math.max(barWidth/5,group.options.drawPoints.size),
       className: group.className
     };
     DOMutil.drawPoint(x + 0.5 * barWidth + offset, y + fillHeight - bar1Height - 1, groupTemplate, framework.svgElements, framework.svg);