* TOR_CONTROL_SOCKET is a path to the control socket file.

* TOR_CONTROL_ADDRESS is the IPv4 address and TOR_CONTROL_PORT is the
  port of the control *port*. If only one of these are specified, a
  sane default will be picked for the other.

By default sane defaults are set for all three of these, so this is
only a mechanism to override them for non-standard configurations.

Both the socket file and port will be tried, in that order.

This should make the window resizeable to any size.

Will-fix: #11192

When using a bridge, the first node in the path doesn't have a
ServerDescriptor. We now handle this case gracefully.

Make sure that onioncircuits can still display useful results without
tor-geoipdb installed.

Based on the patch from Sascha Steinbiss <sascha@steinbiss.name>

The way we use Transifex, we need to point Tor people to a POT file in
Git that they can regularly pull. I see that Onion Circuits has no such
file in Git. It's a bit sad to store such auto-generated files in Git,
but it's even more sad to ship software without translations.

refs: Tails#11173

Thanks to Sascha Steinbiss <sascha@steinbiss.name>.

This prevents a PyGIWarning on startup

With bad network conditions, stem sometimes sends the circuit closed event twice. When recieving the 2nd
of these events, Tor Monitor used to add the circuit that had beeen removed from the list by the 1st.
Will-fix: 10517

Should-fix: #10516

It often happens that more space than half of the window is needed to display
the circuit names. This commit makes the panes non homogeneous in width and
remove the scrollbar from the left pane so that it adapts to the required
width.

For every stream, tor will send something like:

650 STREAM 3709 NEW 0 www.example.org:80 SOURCE_ADDR=127.0.0.1:42592 PURPOSE=USER
650 STREAM 3709 SENTCONNECT 95 www.example.org:80
650 STREAM 3709 REMAP 95 93.184.216.34:80 SOURCE=EXIT
650 STREAM 3709 SUCCEEDED 95 93.184.216.34:80
650 STREAM 3709 CLOSED 95 93.184.216.34:80 REASON=DONE

If we update the target when we receive the REMAP event, then we replace the
hostname by its IP. In this commit we only update the stream status, but keep
the old target.

We used to compare the new circuit ID with the old stream ID, which
obviously was always false.

It happens that Tor returns "??" as a country. In case the country
isnt' known by pycountry, just display the string returned by Tor.