Minor doc fix in bind module; vague beginnings of game-side positions module; load-into-grid made able to work in absence of a current tiles widget or a types list in the module (EditorEvent seems too troublesome to design around, on the other hand); trying to make the edit-erase view accommodate the same absences, and also different styles of graphic on the tiles, e.g. circles or fixed images in addition to the per-type images now