Added a bunch of things:

Various names and prefstrings changed or added.

Elf bones can be smelted to wood with a chance of a new mineral, Poncium, alloyable with steel for a metal 200% damage but no capabilities beyond weapons and trap components. I think.

Occasionally one specific elf gets Armok particularly pissed off with his bitching.
Armok turns these elves into trees. Dwarven Justice.

Those elven diplomats you send insane through whichever means now reappear, as a huntable (and butcherable, eatable, tannable etc.) creature with a high modvalue. Fair Game indeed.

Goblin bones can be smelted to iron (sometimes) with a (even more sometimes) chance of freezing your furnace operator to death. Pity you can't get a useless noble to do it, not just the Dungeon Master.

Two new trap components: the Beehive and lawnmower. Probably less effective than vanilla trapcomps, but whatever. They're designed to incapacitate beyond all reasonability, not kill.

New stone layer, from the Ancient Dwarves flooding the world with magma. Has large clusters of slag, which in turn have small clusters, veins and single squares of useful metal ores. Also petrified creatures from that era, smeltable for gems.

If there's anything else I forgot, have fun discovering it. If it ends up making you lose your fortress, blame the elves.

Oh, and this is just the objects folder. If you ask me to upload the full version (i.e. the entire version I was testing and modding in, sans abandoned fortresses, I'll upload that too.

VERSION 1.1: Added in the Dwarven Flamethrower, the Giant Battle Kobold and the Shade Elves.
The Giant Battle Kobold is a megabeast, and the Shade elves are the Elves getting sick of the dwarves' shit and summoning the spirits of their dead. They'll siege in autumn and use metal equipment. They have no_fear, so look out. They'll drop a bar of Poncium upon death, so you can use that for some delicious delicious Poncium Steel.

VERSION 1.2: A few new sources of fuel, fixed the cats, tweaked the Shade Elves. Have fun, youse guise. Hopefully last version, unless someone has an awesome idea that menaces with spikes of YES.

VERSION 1.3: Added less overpowered stone versions of spear, sword and mace. Mroul and Ironblood are both now megabeasts. Also included: my 'normal fort', Akathkegeth (Winterhold) and the Year 1 save of Mirrorcaught, the succession game.

Version 1.4: Drowned and obsidified nobles are in (as trees and stone respectively) and Elf Kings will now megabeast your fort up. Also, it's 40d13 now.