Tor 0.0.6rc4 is out

[Roger Dingledine <arma@mit.edu>]

Yet more bugs fixed. None of these are critical. This will be 0.0.6 if
there are no critical bugs.

tarball:   http://freehaven.net/tor/dist/tor-0.0.6rc4.tar.gz
signature: http://freehaven.net/tor/dist/tor-0.0.6rc4.tar.gz.asc

Improvements since 0.0.6rc3:
  o Update the built-in dirservers list to use the new directory format
  o Fix a rare seg fault: if a node offering a hidden service attempts
    to build a circuit to Alice's rendezvous point and fails before it
    reaches the last hop, it retries with a different circuit, but
    then dies.
  o Handle windows socket errors correctly.