updated deps and deleted duplicate keys in project map
added missing require
fixed(?) algorithm

This probably needs tests and a closer look, but it works for now.
small comment
added workaround for zore problem
added another cond branch
marked where idiom tagging work should probably be done
moved to newer name in library
should be wrapped in parens
added todos
expanded comment
more comments and small fix
reordered some expressions for clarity
made stylistic change
nil check
added unigram schema, where a gram is a Natsume-defined unit
added comments
expanded comment
touch
simplify