Doors closed

Makes villagers close doors more aggressively.

In vanilla, villagers are already supposed to close doors they have opened, but ocasionally, they fail to do so. They also never close a door that was already open. Without player intervention, a village will tend toward a state of having all doors open at all time. Not great for safety.

Changes

• Villagers who find an open door will now close it after walking through.
• Fixes a bug that causes villagers to, on rare occasions, not close a door they walked through, even if it was already closed when they found it.