ENH: [mvd2-iewer] Fixed disconnected signals/slots.

Code/Application/Viewer/mvdApplication.cxx

@@ -67,10 +67,6 @@ Application
 ::Application( QApplication* qtApp ) :
   I18nApplication( qtApp )
 {
-  QObject::connect(
-    this, SIGNAL( aboutToQuit() ),
-    this, SLOT( OnAboutToQuit() )
-    );
 }
 
 /*******************************************************************************/
@@ -172,11 +168,5 @@ Application
 /*******************************************************************************/
 /* SLOTS                                                                       */
 /*******************************************************************************/
-void
-Application
-::OnAboutToQuit()
-{
-  qDebug() << "mvd::Application::OnAboutToQuit().";
-}
 
 } // end namespace 'mvd'

Code/Application/Viewer/mvdApplication.h

@@ -186,9 +186,6 @@ private:
 //
 // Slots
 private slots:
-
-  /** */
-  void OnAboutToQuit();
 };
 
 /*****************************************************************************/

Code/Application/Viewer/mvdMainWindow.cxx

@@ -207,17 +207,23 @@ MainWindow
   // Connect Appllication and MainWindow when selected model is about
   // to change.
   QObject::connect(
-    qApp, SIGNAL( AboutToChangeModel( const AbstractModel* ) ),
-    this, SLOT( OnAboutToChangeModel( const AbstractModel* ) )
+    I18nApplication::Instance(),
+    SIGNAL( AboutToChangeModel( const AbstractModel* ) ),
+    // to:
+    this,
+    SLOT( OnAboutToChangeModel( const AbstractModel* ) )
   );
 
   // Connect Application and MainWindow when selected model has been
   // changed.
   QObject::connect(
-    qApp, SIGNAL( ModelChanged( AbstractModel* ) ),
-    this, SLOT( OnModelChanged( AbstractModel* ) )
+    I18nApplication::Instance(),
+    SIGNAL( ModelChanged( AbstractModel* ) ),
+    // to:
+    this,
+    SLOT( OnModelChanged( AbstractModel* ) )
   );
-  
+
   // Show the progress dialog when a new image is loaded
   QObject::connect(
     this, SIGNAL( OpenImageRequest(QString) ),