Minor refactoring before merge

GUI/src/main/java/cz/fidentis/analyst/gui/HelloWorldActionListener.java

-/*
- * To change this license header, choose License Headers in Project Properties.
- * To change this template file, choose Tools | Templates
- * and open the template in the editor.
- */
-package cz.fidentis.analyst.gui;
-
-/**
- * Demo listener for testing.
- * 
- * @author oslejsek
- */
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import org.openide.DialogDisplayer;
-import org.openide.NotifyDescriptor;
-import org.openide.awt.ActionID;
-import org.openide.awt.ActionReference;
-import org.openide.awt.ActionRegistration;
-import org.openide.util.NbBundle.Messages;
-
-@ActionID(category = "Window",
-id = "com.mycompany.mavenproject2.HelloWorldActionListener")
-@ActionRegistration(displayName = "#CTL_HelloWorldActionListener")
-@ActionReference(path = "Menu/Window", position = 0)
-@Messages("CTL_HelloWorldActionListener=Hello World")
-public final class HelloWorldActionListener implements ActionListener {
-
-    public void actionPerformed(ActionEvent e) {
-        NotifyDescriptor d = new NotifyDescriptor.Message("hello...");
-        DialogDisplayer.getDefault().notify(d);
-    }
-
-}
\ No newline at end of file

GUI/src/main/java/cz/fidentis/analyst/gui/SymmetryEstimator.java

-/*
- * To change this license header, choose License Headers in Project Properties.
- * To change this template file, choose Tools | Templates
- * and open the template in the editor.
- */
 package cz.fidentis.analyst.gui;
 
 import java.awt.event.ActionEvent;
@@ -12,6 +7,13 @@ import org.openide.awt.ActionReference;
 import org.openide.awt.ActionRegistration;
 import org.openide.util.NbBundle.Messages;
 
+/**
+ *
+ * @author Natalia Bebjakova 
+ * 
+ * Symmetry estimator.
+ */
+
 @ActionID(
         category = "File",
         id = "cz.fidentis.analyst.gui.SymmetryEstimator"