1. Implemented support for different icons for different states (expanded,

selected, combination of them) for the tree control (and doc'd it)
2. removed code which was sending extra event if wxFrame::SetSize() was
   used
3. important changes to wxWizard interface
4. small compilation corrections


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3756 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/docview.cpp

@@ -56,6 +56,7 @@
 #include "wx/choicdlg.h"
 #include "wx/docview.h"
 #include "wx/confbase.h"
+#include "wx/file.h"
 
 #include <stdio.h>
 #include <string.h>