some geoip related todo items

      - Write some basic unit tests.

    - Mention in dir-spec.txt

    - Mention in control-spec.txt

    - we count hits from our reachability tests too. stop that somehow.

    - have normal relays report geoip stats too.

    - different thresholds for bridges than for normal relays.

    d let Vidalia use the geoip data too rather than doing its own

      anonymized queries

R - bridge communities