Doc: replace //! entries for /*! */

Change-Id: Ieba2816190fc08bd2ec6410c4eb99e6557ab6206
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

src/controls/Menu.qml

@@ -94,24 +94,24 @@ import "Styles/Settings.js" as Settings
 MenuPrivate {
     id: root
 
-    //! \internal
+    /*! \internal */
     property Component style: Qt.createComponent(Settings.THEME_PATH + "/MenuStyle.qml", root)
 
-    //! \internal
+    /*! \internal */
     property var __menuBar: null
-    //! \internal
+    /*! \internal */
     property int __currentIndex: -1
-    //! \internal
+    /*! \internal */
     on__MenuClosed: __currentIndex = -1
 
-    //! \internal
+    /*! \internal */
     __contentItem: Loader {
         sourceComponent: __menuComponent
         active: !root.__isNative && root.__popupVisible
         focus: true
     }
 
-    //! \internal
+    /*! \internal */
     property Component __menuComponent: Loader {
         id: menuFrameLoader
 

src/controls/MenuBar.qml

@@ -83,10 +83,10 @@ import "Styles/Settings.js" as Settings
 MenuBarPrivate {
     id: root
 
-    //! \internal
+    /*! \internal */
     property Component style: Qt.createComponent(Settings.THEME_PATH + "/MenuBarStyle.qml", root)
 
-    //! \internal
+    /*! \internal */
     __contentItem: Loader {
         id: topLoader
         sourceComponent: __menuBarComponent
@@ -94,7 +94,7 @@ MenuBarPrivate {
         focus: true
     }
 
-    //! \internal
+    /*! \internal */
     property Component __menuBarComponent: Loader {
         id: menuBarLoader