Sets saline solution to remove the skill gap so that players don't purposefully injure themselves to train the skill. This does not impact any recipes because salt water is always usable as a substitute in them when players just want to use the cooking skill.
undo part of the commit by request
Reduces the pocket-first-aid requirement back to 2 so folks can craft direct from the book.  Sorry, bug_sniper & Rivet.
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA