[chirp_devel] NoneType object has no attribute 'Enable'

Hey Dan,

I thought you might be able to debug this faster than I can but the tip of master does not run from source.

wxui/main.py line 850 throws a `NoneType object has no attribute 'Enable'` error. The line before that is assigning `None` to `menuitem` so something with `ident=101` is not being found.

Is anyone else seeing this?

Tony