Include locale in TutorialURL panel

Change-Id: Iaad92f5476f011aeffec1e8aa1dd8e5e6dadfad0

Author: ewpatton

appinventor/appengine/src/com/google/appinventor/client/Ode.java

@@ -2632,6 +2632,10 @@ public void setTutorialURL(String newURL) {
       designToolbar.setTutorialToggleVisible(false);
       setTutorialVisible(false);
     } else {
+      String locale = Window.Location.getParameter("locale");
+      if (locale != null) {
+        newURL += (newURL.contains("?") ? "&" : "?") + "locale=" + locale;
+      }
       tutorialPanel.setUrl(newURL);
       designToolbar.setTutorialToggleVisible(true);
       setTutorialVisible(true);