Really pedantic typo fixes - non-string.

Fixes a few typos in comments.
Restore lighting check logic removed by eeed5169b70f5473a5410134ff87f925653e7205
Artifact effects: check for worn status before using effects_worn.

game::process_artifact is called when processing items in the characters inventory, it will be called for items in either the main inventory, worn items or the wielded item,
one has to check whether the item is actually worn or just wielded / carried before applying the effects.

Only print the message when item is not worn.
Remove the wielded parameter from game::process_artifact

As the worn status is calculated inside the function, why not also calculate the wielded status there?
The code is equivalent.
Prevent items from repairing themselves.
Armor sorting: move selected armor around instead of swapping it.

When the last item is selected and moved down, it is moved to the front of the list, all other items are unchanged.
Similar when the first item is selected and moved up, it is removed and added to the end of the list.
Previously this would only swap the last and the first entry.
Apply mutation effects when adding them on new characters.
Fix using cut_min/cut_max for cutting damage of artifacts.
Merge branch 'mutation' of https://github.com/BevapDin/Cataclysm-DDA into merge2
Merge branch 'armor-sorting-screen-move-stuff-around' of https://github.com/BevapDin/Cataclysm-DDA into merge2
Merge branch 'repair-me' of https://github.com/BevapDin/Cataclysm-DDA into merge2
Merge branch 'artifat-messages' of https://github.com/BevapDin/Cataclysm-DDA into merge2
Merge branch 'restore-light-check' of https://github.com/kevingranade/Cataclysm-DDA into merge2
Merge branch 'non-string-typos' of https://github.com/Rivet-the-Zombie/Cataclysm-DDA into merge2