Add close menu item in main menu

Action associated : minimize the main widget
Click on the status icon in the systen tray to show it again

sflphone-gtk/src/statusicon.c

@@ -48,16 +48,7 @@ main_widget_minimized()
 void 
 show_hide (void)
 {
-  /*if(gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(show_menu_item)))
-  {
-    gtk_widget_show(GTK_WIDGET(get_main_window()));
-  }   
-  else
-  {
-    gtk_widget_hide(GTK_WIDGET(get_main_window()));
-  }*/
-
-  if( main_widget_minimized() )
+  if(gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(show_menu_item)))
   {
     gtk_widget_show(GTK_WIDGET(get_main_window()));
     set_minimized( MAIN_WINDOW_SHOW );
@@ -67,6 +58,7 @@ show_hide (void)
     gtk_widget_hide(GTK_WIDGET(get_main_window()));
     set_minimized( !MAIN_WINDOW_SHOW );
   }
+
 }