Update changelog

Conflicts:

	data/changelog.txt
Common cold now lowers body temperature
Commented out body temperature equalization code; it was not working correctly
WIP bodytemp equalization

Conflicts:

	player.cpp
Bodyheat now tied to hp
Rate of heat loss increases for torso/head, and if in water/sewage
Fixed body temperature equalization, cleaned up code
Fixed body temp not warming up. Cleaned up.

Conflicts:

	data/changelog.txt
Remaining hp affects body temp. Fixed bio_climate name
Encum screen now colors warmth values for body parts if they are adequate
Minor frostbite fix regarding pain
Update changelog

Conflicts:

	data/changelog.txt
Init'd temp_conv, and removed blood loss (not working)
Added cold mouth and hot mouth DIs
Add professions to character creation, affecting starter gear

Profession code based in part on skill code. Breaks save files and templates, but as currently written, adding new professions does not break compatibility.

Also add 4 sample professions: Unemployed (unchanged from current), Lab Technician (starts with labwear), Nudist (starts with nothing, -1 point cost), Wannabe Mechanic (starts with toolbelt, wrench, some books).

Conflicts:

	data/raw/professions.json
	newcharacter.cpp
Actually give mechanic profession books. Also, bump it to 2 points.

Conflicts:

	data/raw/professions.json
Make removing professions emit a warning, not crash
Give the player an ordered profession list during chargen
Actually check that we've got the points for our profession
Fixed blood loss code

Conflicts:

	player.cpp