Bunch of diona nymph tweaks/fixes.
Tidied up/fixed up the rig back icons.
Fixes autolathe menu.
Fixes diona and simple_animals eating snacks.
Fixes #7316
Fixes #7310 and should also fix #7311
Actually fixes hardsuit back icons.
Merge pull request #7340 from Zuhayr/dev-freeze

Dev-freeze fixes.