Cleanup
Disable drawing of Bezier paths
Remove EDITION global
Replace defines with flag enum
Remove goto
Indentation
Remove goto
Indentation
Code style
Rename CONTROLS_CUST_MOUSELOOK to ..._USE

That keybind has nothing to do with mouselook - it uses / equips items.
It was already labeled "Use" in the config settings menu, so the name
MOUSELOOK was just confusing.