add hacking.txt
add stream_take_while
more hacking.txt
add carcdr *method*, evil?
evil optimizations

that don't have a big effect (around 5-10% perhaps)
more evil optimizations

another 5-10% (perhaps 15%)
move and fix MIME_Entity_body_as_string: charset decoding
fix warning on undef attribute values
fix encoding in Chj::PXML::fragment2string