More determinism (and close determinism)

Most scores are now deterministic or close to deterministic. Based on tests and depending on the problem this can be up to 6x faster convergence. Basically most of the places that used minimization have either been removed or have extremely narrow search ranges to work on after sampling.

All fractionation has been converted to use spline integrals. Splines where already constructed and using trapz is slower and less accurate.

This improves MCMC and Parameter Estimation.

All of this came out of tracking down a few odd bugs that showed up when doing some recent error models.