fixed _score() being called twice. Added real debugging
added a few more debugging statements. Detect data: urls and score them downward
skip data urls entirely
fixed _score being called twice. Added options for how images are read. If no size information is found on the first pass then more chunks are read
added boost_ options
updated CHANGES.txt
changed scoring logic
updating docs and copyright
removed README.md to stop duplicating docs
version in setup now updated from the module itself
fixed a bug that prevented protocolless urls from being parsed
copied the readme into docs