Merge pull request #328 from StainlessStlRat/master

Disable drawing a marker on data that has been set to not visible

Author: hannesa2

MPChartLib/src/main/java/com/github/mikephil/charting/charts/Chart.java

@@ -762,6 +762,9 @@ protected void drawMarkers(Canvas canvas) {
 		for (Highlight highlight : mIndicesToHighlight) {
 
 			IDataSet set = mData.getDataSetByIndex(highlight.getDataSetIndex());
+			if (!set.isVisible()) {
+				continue;
+			}
 
 			Entry e = mData.getEntryForHighlight(highlight);