tor/changes/feature2411

  o Minor features:

    - Report flags that control a circuit's path selection to
      controllers in CIRC events and in replies to 'GETINFO
      circuit-status'.  Implements part of ticket 2411.

    - Report the hidden service address and current state of a
      hidden-service-related circuit to controllers in CIRC events and
      in replies to 'GETINFO circuit-status'.  Implements part of
      ticket 2411.