add visibility option
fix tech_cost using the wrong variable name
fix yaml defaults not init'ing the Option class
LttP:
fix potential pathing confusion in maseya palette shuffler
Server:
Minimum version per team made no sense, removed
also give warnings about deprecated LttP options
also fix FactorioClient.py getting stuck if send an unknown item id
also fix !missing having an extra newline after each entry
also default to no webui
Fabian Dill