Update for bitmap, image on scaling, transparancy,

wxCHECKs and no more dependance of wxBitmap on wxImage
  in its API


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1117 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/app.cpp

@@ -21,6 +21,7 @@
 #include "wx/settings.h"
 #include "wx/resource.h"
 #include "wx/module.h"
+#include "wx/image.h"
 
 #include "unistd.h"