Color by dataset chart goes clockwise. Fixes #322

Author: mikekucera

EnrichmentMapPlugin/src/main/java/org/baderlab/csplugins/enrichmentmap/view/control/ControlPanelMediator.java

@@ -308,6 +308,7 @@ public CyCustomGraphics2<?> createChart(EMStyleOptions options) {
 					props.put("cy_dataColumns", columns);
 					props.put("cy_colors", colors);
 					props.put("cy_showItemLabels", chartOptions.isShowLabels());
+					props.put("cy_rotation", "CLOCKWISE");
 
 				} else {
 					List<CyColumnIdentifier> columns = ChartUtil.getSortedColumnIdentifiers(options.getAttributePrefix(),