Log Message:
Update tor to 0.2.2.22
Changes in version 0.2.2.22-alpha - 2011-01-25
  Tor 0.2.2.22-alpha fixes a few more less-critical security issues. The
  main other change is a slight tweak to Tor's TLS handshake that makes
  relays and bridges that run this new version reachable from Iran again.
  We don't expect this tweak will win the arms race long-term, but it
  will buy us a bit more time until we roll out a better solution.

  o Major bugfixes:
    - Fix a bounds-checking error that could allow an attacker to
      remotely crash a directory authority. Bugfix on 0.2.1.5-alpha.
      Found by "piebeer".
    - Don't assert when changing from bridge to relay or vice versa
      via the controller. The assert happened because we didn't properly
      initialize our keys in this case. Bugfix on 0.2.2.18-alpha; fixes
      bug 2433. Reported by bastik.

  o Minor features:
    - Adjust our TLS Diffie-Hellman parameters to match those used by
      Apache's mod_ssl.
    - Provide a log message stating which geoip file we're parsing
      instead of just stating that we're parsing the geoip file.
      Implements ticket 2432.

  o Minor bugfixes:
    - Check for and reject overly long directory certificates and
      directory tokens before they have a chance to hit any assertions.
      Bugfix on 0.2.1.28 / 0.2.2.20-alpha. Found by "doorss".