Core: Update contract on production

[FrozenKiwi]

Also, add some more tests around UberConverter, ShockAbsorber, and instant uber-transfers to cover the following change:

    // Seems good - do the transfer
    notifyWithdraw(from, finalAmount, msTransferAt); // <-- deployed fix
    notifyDeposit(to, finalAmount, msTransferAt); // <-- deployed fix
    _transfer(from, to, finalAmount);
    emit ExactTransfer(from, to, finalAmount, msTransferAt);