moved notes and slides into doc/
Checkpoint: typechecks due to liberal presence of undefined. Reworked many type signatures and began using lenses in the place of MVars. Still need to actually re-implement game functionality with these new type signatures. Also need to begin sending JSON over the wire for browser client. Terminal client will need to be modified accordingly as well.
Checkpoint: typechecks with improved code and all 'undefined's removed. TODO: continue refactoring before more extensive testing