2. fixed reentrancy bug in wxGetTranslation/wxLogError resulting in infinite
number of messageboxes
3. wxMenuItem::GetLabelFromText("&Foo") now returns "Foo", not "&Foo" in GTK
as well
4. test for update region being NULL in wxPaintDC
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6655 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775