Fix the effect of nullifying poisons, etc.
Let AI always prefer easier levels for exploration
Make potions and flasks rarer
Fix a crash when switching leader in organ menu
Prefer abc to a-c in slot interval display
Let non-projectile actors block view
Optimize clear and unoccupied tile lookup
Inline the main Digital FOV function

Manually inlining the concatMap where it's used doesn't help further.
Disabling all assertions in Digital.hs doesn't help at all, surprisingly.
Tweak memory usage unperceptibly
Shorten Shrapnel to Blast
Remove the unused ChangeTo item feature
Display ? instead of dice for Timeout
More consicely pretty print a point in a message