Trolls for DF from scratch - contribution

Update 1: Trolls now properly have throwing equipment when starting. Limited maximum number of trolls in the world to 2000 and made them not mundane (trolls being alive in the world counts against the world passing into the age of civilization).
Update 2: Trolls will occasionally talk to each other and will taunt you (place the speech file in /data/speech to enable). New creature classification. Reduced ammunition axe and javelin weight. Fiends can't give evil eye to paladins; only causes dizziness until mutation. Fixed spelling. "Finished" state.

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Content added:
Trolls - large, green-skinned, long-living, violent, alcohol-dependent civilized but non-playable creatures who live lives of hunting in the forest. Occasionally have peg-legs or only one arm due to their lifestyle. They are heavily armed. Prone to rage and to hunting and killing random animals. Also, 60% of them are bandits. Will be very angry if you cut trees. Long, often greasy hair, dark green skin, eyes in shades of yellow.

Troll mutation: all trolls, including peg-legged and one-armed ones, further mutate (when map is loaded, not in worldgen), with the following probabilities:
10% - troll master. Greatly enhanced strength, agility and endurance
20% - blind troll. Exactly what it says. No eyes.
20% - giant troll. 2x size, 80% speed.
10% - troll midget. 0.5x size, 120% speed.
35% - regular troll. Experiences tooth decay.
5% - madtroll. Attacks all on map.
This means there's 24 different combinations of troll to face, in addition to their choices of weapon.

Night creatures - mutated civilized beings (halflings only for now) who have found their place among the troll hordes. Pale-skinned, otherwise resemble halflings. Have either 8 tentacles for legs or 2 tentacles for arms and a grasping mouth. Fight more violently than halflings. Can either spit blood or vomit poison that causes rot.

Fiends - huge, furry humanoids that have large horns they can gore you with, muzzles, tails and hooves. Can breathe jets of fire (1x/3 days) and cast an evil eye on an enemy (1x/life, causes unconsciousness for 100 days, and after that random mutation, gives custom title of "cursed"). Greatly amplified strength and combat skills. Dark crimson fur, black skin, glowing red or yellow eyes.

Troll items -
Weapons: large hammers, axes and javelins. All weapons have two attacks (hammer: smack from side, smash from above; axe: slash from side, cleave from above; javelin: stab with tip, impale). Axes and javelins also give access to throwing quivered axes and javelins, which the trolls use as weapons.

Armor: hunting capes, loincloths, tribal masks and fancy hats (worn among other things by regular trolls), leather armor and tribal shields (worn by troll warriors)

Misc: food item "x in a jar", instrument: bone kantele and drums, tools: skinning axe, totem, rune amulet, toys: shrunken head. New colors: glowing yellow, glowing red, glowing blue, glowing green.

Civilization: playable in adventure mode. Trolls, night creatures and fiends living together with trolls being the large majority. Greedy, misanthropic, uses evil plants and evil and cave creatures, builds cities in mountains and forests and settles caves. Custom profession and skill titles for warriors. Sends shamans to negotiate tree caps.

As for why these creatures all live together, unlike in the hierarchical or stoning-foreign-things-to-death societies that exist in this world, basically you're free to live among the trolls as you are to live among the trees; they will mostly ignore you if you don't bother them or their forests, but may also randomly attempt to kill you for fun or hunt you if you look weak and tasty, which is why creatures with a choice don't do that.