D1-Changed 1.17 event handler to check all custom trades, instead of randomly choosing them.
D2-Fixed Tuxedo Cat Head.
D3-Changed code to check that MC version is at least 1.14 or above, and added 1.18 to 1.17 event handler.
D4-Added Shivering Strider
D5-Fixed detection of Shivering Strider.
D6-Switched Strider to a 25% chance of being Shivering.