0.01     Thu Oct 15 23:09:18 2009
    - original version
0.02     Tue Oct 20 18:00:31 2009
    - fixed some problems with chunked, content-length, and keep-alive
0.03     Wed Oct 21 01:14:30 2009
    - Streaming from filehandles, poll_cb
0.04     Wed Oct 21 02:13:04 2009
    - poll_cb bug fixed (misunderstood the unreleased spec), tests!
