Added Thaumcraft 4.2

finally! :D

Closes #23
Tweaked oregen some more

yellorite generates in wasteland biomes now, since the moon was a no-go.
Also added Thaumcraft's Magical Forest biome for mana-infused stone
(mithril).

Lowered weights for gravel ores to appear in gravel veins.

Normalized all vanilla stone definitions for CoFH generation materials.
tweaked Iguana TiCTweaks

enabled the override for any and all values relevant to TiC or Iguana
Tweaks.

Excluded Botania, EE3, ExU, and Gc3 from Tinker Tweaks, as they don't
have tinker tool versions.
Whoops, forgot these from Thaumcraft commit
Added Dense Yellorite Ore config

let's hope it works