o Minor bugfixes (hibernation, bandwidth accounting, shutdown):

    - When hibernating, do not attempt to launch DNS checks. Fixes a
      case of bug 12062; bugfix on 0.1.2.2-alpha.

    - Resolve several bugs related to descriptor fetching on bridge
      clients with bandwidth accounting enabled. (This combination is
      not recommended!) Fixes a case of bug 12062; bugfix on
      0.2.0.3-alpha.

    - When hibernating, do not try to upload or download
      descriptors. Fixes a case of bug 12062; bugfix on 0.0.9pre5.

    - Do not attempt to launch self-reachability tests when entering
      hibernation. Fixes a base of bug 12062; bugfix on 0.0.9pre5.