Added an option for no ice (no slipperiness)
Added an option to allow jumping on a honey block
Added an option to remove slowdown and bounciness from slime block
If you enable the "slime utilities", then jump a bunch on some slime and disable the checkbox while standing on a slime block, then your previous bounces are re-remembered and combined and you get skyrocketed upwards.
It's only a little inconvenient and needs extremely precise conditions to happen, so I didn't bother to find a way to fix it.