add duplicates controller action
large retrieved lists from sphinx are back, baby.
separate god files for sphinx and dev/prod environments
Shingler class for shingles extracting(duh), Similarity class for various similarity metrics
flexible layout, minor changes to stats page, duplicates link on docset's show page
New view for duplicates page, minor changes to other views and partials
Make this bloody page_entries_info render properly, finally.
Production mode=Development mode, same mongodb
remove old god file
thin server configuration