fix race condition that can cause crashes at client or exit relay

      handshake from working unless we explicitly tell OpenSSL that we are

      using SSL renegotiation safely.  We are, of course, but OpenSSL

      0.9.8l won't work unless we say we are.

    - Avoid crashing if the client is trying to upload many bytes and the

      circuit gets torn down at the same time, or if the flip side

      happens on the exit relay. Bugfix on 0.2.0.1-alpha; fixes bug 1150.

  o Minor bugfixes:

    - Do not refuse to learn about authority certs and v2 networkstatus

    edge_connection_t *conn;

    for (conn=or_circ->n_streams; conn; conn=conn->next_stream)

      connection_edge_destroy(or_circ->p_circ_id, conn);

    or_circ->n_streams = NULL;

    while (or_circ->resolving_streams) {

      conn = or_circ->resolving_streams;

    edge_connection_t *conn;

    for (conn=ocirc->p_streams; conn; conn=conn->next_stream)

      connection_edge_destroy(circ->n_circ_id, conn);

    ocirc->p_streams = NULL;

  }

  circ->marked_for_close = line;