rename also message identifier

VadereGui/resources/messages.properties

@@ -51,7 +51,7 @@ DataProcessingView.msgFileEmpty=File name can't be empty
 DataProcessingView.msgFileInUse=File name is already in use
 DataProcessingView.dialogInvalidFile.label=Invalid file name
 DataProcessingView.dialogOutputDataKeySelection.label=Data Key
-DataProcessingView.dialogOutputHeaderSelection.label=Index
+DataProcessingView.dialogOutputIndicesSelection.label=Index
 
 ProgressPanelDone.text=Done
 ProgressPanelWorking.text=Working...

VadereGui/resources/messages_de_DE.properties

@@ -50,7 +50,7 @@ DataProcessingView.msgFileEmpty=Datei darf nicht leer sein
 DataProcessingView.msgFileInUse=Dateiname bereits vorhanden
 DataProcessingView.dialogInvalidFile.label=Ung\u00FCltiger Dateiname
 DataProcessingView.dialogOutputDataKeySelection.label=Rubrik
-DataProcessingView.dialogOutputHeaderSelection.label=Index
+DataProcessingView.dialogOutputIndicesSelection.label=index
 
 ProgressPanelDone.text=Fertig
 ProgressPanelWorking.text=Arbeite...

VadereGui/src/org/vadere/gui/projectview/view/DataProcessingView.java

@@ -580,7 +580,7 @@ class DataProcessingView extends JPanel implements IJsonView {
 
 			c.gridx = 0;
 			c.gridy = 2;
-			panel.add(new JLabel(Messages.getString("DataProcessingView.dialogOutputHeaderSelection.label")+":"), c);
+			panel.add(new JLabel(Messages.getString("DataProcessingView.dialogOutputIndicesSelection.label")+":"), c);
 
 			c.gridx = 1;
 			c.gridy = 2;