Make the fake core behave more like the real core.
A few small statement handling fixes.
Make game know when an object exists but cannot be used in an action, e.g. If you try to eat a rock in front of you, you now get "You can't eat a rock!" instead of the old, "You don't find any rocks."
Replace keyword word groups with proper lexeme DB entries, which are faster and cleaner. Also adds basic random names ('The Adjective Noun') and handles game_event messages slightly differently.
Now that numerous entries doesn't slag the DB, add Japanese names.