ApplicationTemplate: enable Qt.quit() & revise menu items

Change-Id: I0248b95b32b403c3513d442aeb626afd3ead5656
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

examples/ApplicationTemplate/main.cpp

@@ -59,6 +59,7 @@ int main(int argc, char *argv[])
         qWarning("Error: Your root item has to be a Window.");
         return -1;
     }
+    QObject::connect(&engine, SIGNAL(quit()), &app, SLOT(quit()));
     window->show();
     return app.exec();
 }

examples/ApplicationTemplate/qml/main.qml

@@ -48,13 +48,12 @@ ApplicationWindow {
 
     menuBar: MenuBar {
         Menu {
-            text: "Menu 1"
-            MenuItem { text: "Item 1" }
-            MenuItem { text: "Item 2" }
+            text: "File"
+            MenuItem { text: "Quit"; onTriggered: Qt.quit() }
         }
         Menu {
-            text: "Menu 2"
-            MenuItem { text: "Item 3" }
+            text: "Help"
+            MenuItem { text: "About..."; enabled: false }
         }
     }