Added validation support

Fixed a few minor things in wxGrid
  Fixed bug in SetClippingregion
  Disabled SetDefault again
  Fixed bug in AddChild, SetSize et al.
  Add PROCESS_ENTER and wxEVT_TEXT_CHANGE
  Renamed OnOk -> OnOK
  Added a few compatibilty functions
  Added code to make iinterception
    of events possible and work


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@538 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/button.cpp

@@ -79,7 +79,10 @@ bool wxButton::Create(  wxWindow *parent, wxWindowID id, const wxString &label,
 
 void wxButton::SetDefault(void)
 {
+/*
+  GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
   gtk_widget_grab_default( m_widget );
+*/
 }
 
 void wxButton::SetLabel( const wxString &label )