Use bridges.ip in log message in BridgeRing.insert().

 * REMOVE the comment and other cruft around it.
Log countryCodes in BridgeRing.getBridges().

This is to see if they are ever actually passed into this function. They
weren't being used anywhere inside BridgeRing.getBridges(), nor anywhere
else.
Log a message if there is a duplicate bridge from a sub-hashring.