Here's a bunch of tentative changes. Speak up if you lover or hate them. And probably wait until I get these committed before making your own PRs, so that stuff doesn't conflict.
Botany gets a public biogenerator and the DNA thingy moved to where scientists can upgrade it.
Evac redesigned. The aux base is now publicly accessible, and with the change there's enough room to fit a law office.
Engineering gets a little storage room because it was feeling cramped.
Science now contains a single large experiment room that combines a bunch of functionality. It's most useful for toxins, circuits, and xeniobio, but research and robotics can use it too. This replaces the circuit lab.
Xenobio slightly redesigned. This change allows science to get its own maintenance in the south-east corner. Note that some of xenobio's functionality, like the reagent grinder, is now in the large experiment room.
The aft hallway is now maintenance. Old chemistry and R&D were a little to hard to break into and they were also a little too small. This change fixes both, though i must admit, it's pretty bizarre not having that hallway there.
The alternative entrance to medbay is closed off like in the original versions of the map. Medbay is still public access. I redid the sleeper room.
I added some more maint fluff, but I'm not gonna post it.