o Minor bugfixes (relay):
    - Remove a spammy log notice that should not have been indicating the
      operator that its IPv4/v6 was missing but it was not. Fixes bug 40300;
      bugfix on 0.4.5.1-alpha.
    - Do not query the address cache early in the boot process when deciding
      if we a relay needs to fetch early directory information from an
      authority. This resulted in a relay falsely believing it didn't have an
      address and thus triggering an authority fetch at each boot.