The spectate and follow module moves to exp_scenario/module/control/spectate.lua
in the event_handler shape the other control modules use, and the copy in
exp_legacy is removed. Follow state is a typed record rather than a
positional table, the follow label caption is localised, and the escape
handler marks the record to stop on the next tick instead of poking an
invalid position into it.
The LuaPlayer.close_map call is gone: it does not exist in Factorio 2.0,
where the map is the remote controller and set_controller replaces it.
bbassie