added font encoding support

some more demos
some contributed items into the library
many little tweaks and such


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3844 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxPython/src/helpers.cpp

@@ -141,7 +141,11 @@ void __wxPreStart()
     argv[argc] = NULL;
 
     gtk_set_locale();
+#if wxUSE_WCHAR_T
     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
+#else
+    if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
+#endif
     gtk_init( &argc, &argv );
     wxSetDetectableAutoRepeat( TRUE );
     delete [] argv;