added a hint message for the competitor charts that the leaderboard can also be used for selection

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/common/client/i18n/TextMessages.java

@@ -6,6 +6,7 @@ import com.google.gwt.i18n.client.Messages;
 public interface TextMessages extends Messages {
     public static final TextMessages INSTANCE = GWT.create(TextMessages.class);
 
+    String chartSelectionHint();
     String chooseALanguage();
     String home();
     String events();

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/common/client/i18n/TextMessages.properties

@@ -1,3 +1,4 @@
+chartSelectionHint=Hint: To change the displayed competitors in the chart you can also use the leaderboard.  
 chooseALanguage=Choose a language
 events=Events
 home=Home

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/common/client/i18n/TextMessages_de.properties

@@ -1,3 +1,4 @@
+chartSelectionHint=Hinweis: Die im Diagramm angezeigten Teilnehmer können auch in der Ergebnisstabelle ausgewählt werden.
 chooseALanguage=Wähle eine Sprache
 events=Veranstaltungen
 home=Startseite

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/home/client/place/event/oldcompetitorcharts/OldCompetitorCharts.ui.xml

@@ -15,6 +15,9 @@
 			      	<ui:text from="{i18n.chooseChart}" />
 			  		<g:ListBox ui:field="chartTypeSelectionListBox" />
 			  </div>    
+			  <div class="{res.mediaCss.column}" style="margin-bottom: 1em;">
+			   		<b><ui:text from="{i18n.chartSelectionHint}" /></b>
+			  </div>    
 			  <div class="{res.mediaCss.small12} {res.mediaCss.columns}">
               	<g:HTMLPanel ui:field="oldCompetitorChartsPanel">
         		</g:HTMLPanel>