Use the default Python (2.7) instead of 2.6. This is necessary to get
the benefits of ttk, although it drops support for OS X 10.6 in the
resulting app.
Unified list_tivos() and get_address() -- now the option to enter the
address manually is always presented, alongside the list. This allows
for cases where the beacons aren't propagating (not rare), and of
course, for connectable systems that don't (yet) announce themselves,
like my new remote proxy.