Fixed wxCheckBox on wxGTK (SetLabel called before widget creation),

wxListBox::GetSelection returning -1 now doesn't assert; wxProp improvements
for wxGTK; parser.y includes <io.h> under VC++ to eliminate 'read' warning


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@709 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/checkbox.cpp

@@ -56,7 +56,7 @@ bool wxCheckBox::Create(  wxWindow *parent, wxWindowID id, const wxString &label
 
   SetValidator( validator );
 
-  SetLabel( label );
+  wxControl::SetLabel( label );
 
   m_widget = gtk_check_button_new_with_label( m_label );