add simple views with matching url's
enable file-based sessions
build logic of index page in comments
add logic to create new game, get game from session, and store game in session
rearrange url's to have module control its url's
prefix  is now /ttt/
Add a symbol to the Entity model
make the index view build the board as a list of lists so that the (soon to come) template can traverse it easily without much logic
fix make_move url name
Add board template, use board template for index view
add player one, player two to Game model, modify Game.current_player to be an integer referring to player one or two, add comments
add default for Game.current_player to resolve integrity error
move logic to retrieve game from id stored in session to utility module