Properly remove martial arts buffs when they expire or are invalid.
Alter descriptions slightly.
Fix display.
Small changes.
Fix bash and cut multipliers to actually do what they should.
Fix the fix for multiple stacks.
Revert "Fix the fix for multiple stacks."

This reverts commit 90487ad277ad95b3cc1027adbb2957be77cdc132.
Remove debug messages.
Change fix to be a more robust solution.
Erase scent when we shift. Fix elevators.
Item groups for COP 38
Adds COP 38 and Mossberg Brownie
Fixes typo
Properly check if contained food is rotten.
Merge pull request #4685 from freezerbunny/scent-erase

Erase scent when we shift. Fix elevators.
Fixes
Merge pull request #4689 from Zaweri/pepperbox

Adds 2 pepperbox pistols, Mossberg Brownie and COP 38
Merge pull request #4695 from freezerbunny/food-rotten-container

Properly check if contained food is rotten.
various martial arts bugfixes

* technique damage mults/bonuses and buff damage mults now work
* removed block, bash_resist, cut_resist from techniques as they are no longer
used
Prevent ant chambers being overwritten by tunnels.