o Minor bugfix (relays, hidden services):
    - Refuse connection requests to private OR addresses unless
      ExtendAllowPrivateAddresses is set. Previously, tor would
      connect, then refuse to send any cells to a private address.
      Fixes bugs 17674 and 8976; bugfix on b7c172c9ec76 (28 Aug 2012)
      Original bug 6710, released in 0.2.3.21-rc and an 0.2.2 maint
      release.
      Patch by "teor".