* Fix multispoke mace/chainbars having problems.

* Completely rework how mace/chainbars are spawned to reduce the number of matrix multiplications required EVEN FURTHER!
* Reimplement the maceretry solidity stuff (effect 4).
* Flip the mminlength stuff so that existing dev maps don't break badly.
* Fix hacky chainbar grabbing.
* Tweak height of tinychain a smidge.