Absolute box size doesn't work in membrane systems

[Eigenstate]

I can't think of a good way to enforce absolute box size (especially in the z dimension) in membrane systems due to how the protein may be peripheral to the membrane in the Z dimension. So right now it doesn't work at all and will give you a pretty randomly sized system if you dabble with --absolute-z and NOT -M TIP3.

Actually I can think of plenty of good ways to do this. I am just too lazy to do that right now. guh

[Eigenstate]

I fixed this at some point I forget when lol