Update Pioneer dice with a better color and a normal-sized Explore eye.

Update Pioneer dice ‘‘Settle or Produce’’ face to reflect that Pioneer dice, like Novelty dice, match the color of blue worlds (for Consume points).

Improve the Pioneer die with better rotation snap points and an entry in the chart of faces.

Dice with a Produce face now show that face when pulled from the bag, to look more natural when placed as Goods.

Add the Pioneer die from the Rivalry expansion.

* New feature: add readiness tokens, to coordinate phase advancement
* Fix: lock the Dice Rulers