Fixed

1. Trader is stuck at the city gate and he doesn't go to the city stockpiles with goods for sale (occurring on saved games when player saved the game before building a stockpile and after setting trade route and choosing goods for export).
2. Granaries not working properly after loading saved game (for example workers not getting goods).
3. Building on ruins is not blocked (you can build houses on ruins and ruins should be removed first before you can place anything else there).
4. Some elements disappearing in Well's window (as well as with any other production building).
5. Pottery shows no road sign for one of the three building's access points.

*** While playing on 0.3573 branch please remember to start with a fresh game. Earlier saves won't work properly due to changes we made in the saving process. Thank you for your understanding and enjoy your game. :)