Mutations to json Step 1
Merge branch 'mutations' of https://github.com/OzoneH3/Cataclysm-DDA

Conflicts:
	player.cpp
	weather.cpp
Jsonize Mutations Step2. It runs!
Small mutations update
Mutations jsonized.
Resolved some conflicts

Conflicts:
	game.h
	iuse.cpp
	mutation_data.cpp
Fixed automerge error
Moved categories from mutation_cat.json into mutations.json
Save Traits, Mutations and Mutation category levels by name.
Combined traits.json and mutations.json
Player now searches tiles for warmth while asleep
The player will intelligently use floor items for warmth
Merge branches 'master' and 'sleep-tiles-test' into sleep-tiles-test
Removed uneeded header
Optimizations to warmth while asleep code
Recalc mutation_category_level on load and after mutation changes.
Resolved Conflicts: iuse.cpp, mutation.cpp
Removed accidently commited files.
Merged: https://github.com/CleverRaven/Cataclysm-DDA/pull/2496

Prevent random selection of conflicting traits.
Set mutation_category_level after creating a new game.