Issue with crafting table UI on non-16:9 instances

All arrow types in MC 15w31c have black tips instead of corisponding potion colors.

When you change your name, the scoreboard system does not update, leaving your old name with your old score.

When you change your name, the scoreboard system does not update, leaving your old name with your old score.

Even when crouching, you can still fall off chests

If you land on the edge of a slime block, you don't bounce and you take fall damage

When you land on a slimeblock being rapidly moved by a piston, you will sometimes fall through

Smashing a egg produces snowball particles