Limits board size options to 3x3 or 4x4
Console board size prompt doesn't bomb out on invalid input; re-asks for correct input type
Adds false test for valid board size
Rules recognize valid player types
Strengthens spot validity check
Prompt for human move will re-prompt with new message when human inputs invalid spot
Board shaper checks for equality loosely
All rules work with spots only--old board structure not required
Console IO's declare-result updated per new rules
Simple AI only requires spots, not a full board
Unbeatable AI only requires spots coll (not old board structure)
Fixes naming of scoring functions
Adds new runner namespace for running game with spots (without boards)
Moves main def to new runner namespace
Deletes old game-runner namespace
Deletes 'game' data structure
Removes 'update-board' function
Renames winner-on-board? to winner-present?
Moves minimax score and spot comparison to inline
Board structure is just spots, no size