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- Resolves: #443

-Resolves: #524

- Resolves: #522

"pick location" menu was a transitional menu item to be able to open
window without altering too much the current UI flow that operates on
the systray, and as an interim until the simply secure proposal was in
place.

for calyx, it makes sense to open the window directly.

- Resolves: #457

- Closes: #511

- Cloases: #470

just a dump from a working pad, comments are welcome

By default, bitmask-root allows traffic to devices in local networks.

However, this behavior depends on it correctly identifying the local
network of the default route, and it can fail on more complex network
setups (one common failure mode is when one of the ifaces gets a
link-local ip).

This commit introduces an explicit mechanism, by parsing lines in

/etc/bitmask/ipv4.allow
/etc/bitmask/ipv6.allow

If valid private ips are defined in either of the files, the behavior
will change to fail close for local devices, and allow traffic (both tcp
and udp) to the defined ips, on all ports.

- Resolves: #503

webapi mainly for tests, but it's usable too