Update version number in imagegallery/actions/OpenHelpAction.java

ImageGallery/src/org/sleuthkit/autopsy/imagegallery/actions/OpenHelpAction.java

@@ -44,7 +44,7 @@ public final class OpenHelpAction implements ActionListener {
     @Override
     public void actionPerformed(ActionEvent e) {
         try {
-            Desktop.getDesktop().browse(URI.create("http://sleuthkit.org/autopsy/docs/user-docs/4.3/image_gallery_page.html")); //NON-NLS
+            Desktop.getDesktop().browse(URI.create("http://sleuthkit.org/autopsy/docs/user-docs/4.4/image_gallery_page.html")); //NON-NLS
         } catch (IOException ex) {
             Logger.getLogger(OpenHelpAction.class.getName()).log(Level.SEVERE, "failed to open help page", ex); //NON-NLS
         }