Improve top-level index page for documentation

- Adds Menus to the front page so that we
can actually find essential types like Menu and Action.
- Added a basic example for Action
- I also added ExclusiveGroup to the Controls
category to make it accessible.

Change-Id: Ife980b786870d2bf07d709e024cb97396870e6c7
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

src/controls/Menu.qml

@@ -106,7 +106,7 @@ MenuPrivate {
 
     /*! \internal
       \omit
-      Documented in qtmenu.cpp.
+      Documented in qqquickmenu.cpp.
       \endomit
     */
     function addMenu(title) {
@@ -115,7 +115,7 @@ MenuPrivate {
 
     /*! \internal
       \omit
-      Documented in qtmenu.cpp.
+      Documented in qquickmenu.cpp.
       \endomit
     */
     function insertMenu(index, title) {

src/controls/MenuBar.qml

@@ -47,7 +47,7 @@ import QtQuick.Controls.Private 1.0
     \qmltype MenuBar
     \inqmlmodule QtQuick.Controls 1.0
     \since QtQuick.Controls 1.0
-    \ingroup menus
+    \ingroup applicationwindow
     \brief Provides a horizontal menu bar.
 
     \code

src/controls/doc/src/indicators.qdoc

-/****************************************************************************
-**
-** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file.  Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: http://www.gnu.org/copyleft/fdl.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \group indicators
-    \title Status Indicators
-*/

src/controls/doc/src/menus.qdoc

@@ -27,5 +27,5 @@
 
 /*!
     \group menus
-    \title Application Menus
+    \title Menus
 */

src/controls/doc/src/navigation.qdoc

-/****************************************************************************
-**
-** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file.  Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: http://www.gnu.org/copyleft/fdl.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \group navigation
-    \title Application Navigation
-*/

src/controls/doc/src/qtquickcontrols-index.qdoc

@@ -61,6 +61,10 @@
     Controls are typically items that are used to present or receive input from the user.
     \annotatedlist controls
 
+    \section1 Menus
+    Types that can be used to build menus.
+    \annotatedlist menus
+
     \section1 Related information
 
     \section2 Guides

src/controls/qquickaction.cpp

@@ -53,6 +53,7 @@ QT_BEGIN_NAMESPACE
 /*!
     \qmltype Action
     \instantiates QQuickAction
+    \ingroup applicationwindow
     \inqmlmodule QtQuick.Controls 1.0
     \brief Action provides an abstract user interface action that can be bound to items
 
@@ -65,6 +66,19 @@ QT_BEGIN_NAMESPACE
     automatically be checked.
 
     QtQuick Controls supports actions in \l Button, \l ToolButton, and \l MenuItem.
+
+    Example:
+    \qml
+        Action {
+            id: openAction
+            text: "&Open"
+            shortcut: "Ctrl+O"
+            iconSource: "images/document-open.png"
+            onTriggered: fileDialog.open()
+            tooltip: "Open an Image"
+        }
+    \endqml
+
 */
 
 /*!

src/controls/qquickexclusivegroup.cpp

@@ -66,6 +66,7 @@ static bool isChecked(const QObject *o)
 /*!
     \qmltype ExclusiveGroup
     \instantiates QQuickExclusiveGroup
+    \ingroup controls
     \inqmlmodule QtQuick.Controls 1.0
     \brief ExclusiveGroup provides a way to declare several checkable controls as mutually exclusive.