Re-secures Lab and Bunker doors

Hadn't realized that the metal doors were only used with card readers.
This removes my expanding them.  :-/
Changes to vending machine prices
Balance bulter profession

Dropped the point req by one, added a few points in driving/tailoring.
Should bring it in line with most other professions.
Raised water's cost
Adds (drink) note

By Wuzzy's & Rivet's request, at #6494.
Wev
Merge pull request #6496 from KA101/cocktail-clarification

(Ready) Clarifies screwdriver
Fixe shotgun trap not returning ammo
Merge branch '6463-fix' of https://github.com/werty1124/Cataclysm-DDA into werty1124-6463-fix
Merge pull request #6490 from IOSYN/Professions

Balance bulter profession
Merge pull request #6485 from KA101/LockedMetalDoorRevert

(Ready) Re-secures Lab and Bunker doors
Merge pull request #6487 from John-Candlebury/Prices

Changes to vending machine prices
Merge branch 'master' of https://github.com/werty1124/Cataclysm-DDA