Implement best practice in some classes suppressing warning about serialVersionUID:

http://www.adempiere.com/index.php/Release_Commit_Rules#I9_-_Regenerate_serialVersionUID_when_required_.28B.29

org.adempiere.base/src/org/compiere/model/MAd.java

@@ -26,9 +26,12 @@ import javax.servlet.http.HttpServletRequest;
  * @author Yves Sandfort
  * @version $Id$
  */
-@SuppressWarnings("serial")
 public class MAd extends X_CM_Ad
 {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 7016174881466935574L;
 
 	/**
 	 * Standard constructor for AD

org.adempiere.base/src/org/compiere/model/MTemplate.java

@@ -32,9 +32,14 @@ import org.compiere.util.DB;
  * @author Yves Sandfort
  * @version $Id: MTemplate.java,v 1.12 2006/08/08 18:56:05 comdivision Exp $
  */
-@SuppressWarnings("serial")
 public class MTemplate extends X_CM_Template
 {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -2349891937695644752L;
+
+
 	/**
      * Get MTemplate from Cache
      * 

org.adempiere.ui.swing/src/org/adempiere/plaf/PLAFEditorPanel.java

@@ -64,8 +64,12 @@ import sun.awt.AppContext;
  * @author Low Heng Sin
  * @version 2006-11-27
  */
-@SuppressWarnings("serial")
 public class PLAFEditorPanel extends CPanel {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 3991197818429424319L;
+
 	/**	Logger			*/
 	private static Logger log = Logger.getLogger(PLAFEditor.class.getName());
 	

org.adempiere.ui.swing/src/org/compiere/apps/ProcessParameterPanel.java

@@ -57,8 +57,12 @@ import org.compiere.util.Env;
  * 			<li>BF [ 2548216 ] Process Param Panel is not showing any parameter if error 
  * @version 	2006-12-01
  */
-@SuppressWarnings("serial")
 public class ProcessParameterPanel extends CPanel implements VetoableChangeListener, IProcessParameter {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 4042260793108029845L;
+
 		/**
 		 *	Dynamic generated Parameter panel.
 		 *  @param WindowNo window