wxPython updates for 2.3.4.2 --> 2.4.0

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@18406 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/contrib/xrc/xrc.i

@@ -411,6 +411,13 @@ public:
             return self->GetEncoding();
         #endif
         }
+        void SetEncoding(const wxString& enc) {
+        #if wxUSE_UNICODE
+            // do nothing
+        #else
+            self->SetEncoding(enc);
+        #endif
+        }
     }
 };