Log Message:
Update polipo-1.0.4.

8 January 2008: Polipo 1.0.4:

  * Fixed the handling of tunnels with a parent proxy (thanks to
    Richard Å puta).
  * Fixed a bug that could cause connections to be shut down when
    a server used the old (RFC 2068) semantics of ``100 Continue''
    (thanks to Thomas Wiesel).
  * Fixed a crash when a request URL was larger than 10 kB (thanks to
    Fabian Keil).
  * Fixed a possible failure to read client requests larger than one
    chunk.