refs #400, GUI after Qt 5.4.1 migration

* ini file to complement style sheets (values changed in code)
* aircrafts -> aircraft
* some .h code to .cpp

src/blackgui/infoarea.h

@@ -192,6 +192,9 @@ namespace BlackGui
         //! \remarks result stored in m_dockableWidgets
         QList<CDockWidgetInfoArea *> findOwnDockWidgetInfoAreas() const;
 
+        //! Settings based on ini file
+        void iniFileBasedSettings();
+
     private slots:
         //! Tab bar has been double clicked
         void ps_tabBarDoubleClicked(int tabBarIndex);