minor: rename 'Metadata' -> 'Overview'

SVN: 20211

openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/ReportingPluginSelectionWidget.java

@@ -41,7 +41,7 @@ public class ReportingPluginSelectionWidget extends
         DropDownList<DatastoreServiceDescriptionModel, DatastoreServiceDescription>
 {
 
-    public static final String METADATA = "Metadata";
+    public static final String METADATA = "Overview";
 
     private final IViewContext<?> viewContext;