Some tweaks to how mood effects are handled.

Tweaked the icon of the wet nurse gene, a flaw with it was annoying me to no end.
Most dairy products from Alpha Crafts can now be made with breast milk.

Second hotfix, yes.

Fixed some errors I caused in the process of moving things around to be more modular.

Added new textures for the wet nurse gene.
Added a new gene called 'milky' which doubles milk production.
Added new mod settings for applying a multiplier to milk produced by pawns.
Added a mod icon.

Fixed work givers not having any labels.

Patients can now only be milked if they're incapable of walking.

Moved the research project for making Broodmother a bit up so that it is no longer so close to other, unrelated research.

Added a new job for doctors to milk pawns who cannot milk themselves.
Fixed wardens not being able to milk prisoners who don't have legs. I don't even want to think about how you guys figured this one out, by the way.
Breast milk now counts as acceptable food for all noble titles.

Made a small tweak to the thumbnail.