Added Sawtooth engine splash screen and simple quest-tracking (there's only one quest) to the in-game menu.  Also, I don't remember why I wasn't JSON.stringify-ing and .parse-ing the storyState with saves, but that's being done now - before, it was being used as an integer, but saved/loaded as a string, and thanks to Javascript everything sort of worked out; however, it distinctly did not work in the switch statement I'm using for the quest tracking text.  Javascript will do auto-conversion like that, except in switches, and the Chrome developer tools just showed it as an integer.  Lesson learned and corrected.