Added wxDynamicSashWindow to wxPython, plus other odds and ends.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12673 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/events.i

@@ -35,7 +35,7 @@ int wxNewEventType();
 
 class wxEvent : public wxObject {
 public:
-    wxEvent(int id = 0);
+    // wxEvent(int id = 0);     // *** This class is now an ABC
     ~wxEvent();
 
     wxObject* GetEventObject();