Tweak Torch Recipes

should be more consistent, and torchberries will provide a more
efficient way to make torches, but not by much
Add Doomlike Dungeons Themes

Should help fine tune what dungeons can generate where, and stop
dungeons that don't belong in the nether from generating there.
Add Enviromine Blanket Custom Properties File

Will be split out later, but for now at least it'll get pushed to the
repo for future changes.