v2.2.4 (Efficacy Sampling - Last Minute Changes)

This is the version of the software used to run the efficacy sampling experiments. Previously this was reported to be version 2.2.3, but there were in fact last minute changes made; this release thus captures the state of the software used to generate the data in that efficacy sampling post.

Changes include a code refactor of the generative function task, and tweaks to the generative function task fitness evaluation scheme.