Define |*| infixl 5 to mark that it applies to the total sum
Clean up the use of |*| in content
Equate the number of actors for both factions of Ambush
Fix Ai preferences for mixed blessing items
Don't announce projectile and death drops
Tweak cave definitions
Use Text.Show.Pretty only for debugging (inserts too many spaces)
Fix UI error messages when activating
Mark unique items with 'the'