- minor tweak

- updated checkpoint description
- corrected some typos

- corrected the descriptions of some rooms and logistical options

- more sniper fixes

- fixed another edge case where snipers would deal no damage to inmates

- staff meals can now be stored in legacy sheds (now known as staff sheds) that are placed in Storage rooms
- unsorted mail can be placed in mail boxes in mailrooms (and if those are full, then mailboxes in Storage rooms and Deliveries temporarily)
- Library Shelf renamed to Library Bookshelf (for easier search)

- minor change