client preferences

[Ivan R. Judson]

Looks good, here're my suggestions:

1) try to use a general get(option) => Value, set(option, value),
list_options() and see if that'll work. I know the type problems and
checking can get gross, but this will be more maintainable over time.

2) remove unicast/multicast from menu, and enable audio/video
3) move Manage My Node (without ...) to the top section.
4) remove "request a certificate" it's on the cert mgmt ui anyhow

should My Venues be on the Tools menu?

Looks good otherwise.

--Ivan