Remove unnecessary header dependencies. Fix resulting compilation

problems for wxMSW, wxGTK, wxMotif, wxX11 and wxMac in default
configuration. Non-default configurations will probably need some more
fixes.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19172 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/image.cpp

@@ -31,6 +31,7 @@
 #include "wx/wfstream.h"
 #include "wx/intl.h"
 #include "wx/module.h"
+#include "wx/hash.h"
 
 // For memcpy
 #include <string.h>