Don't blame me, i just restyled it.
Add constructions for dirt mounds, armchairs and sofas.
Allow sofas to be deconstructed.
Change current world options in-game, default out of game.
Adds craftable leather sandals
Adds leather sandals to item_groups.json

I've gone ahead and added the sandals to item_groups.json. They have a
chance to spawn in living rooms, bedrooms, clothing stores, sporting
goods and pawn shops. Let me know if this works alright, the formatting
on github looks a little weird to me!
Added some names to names.json and made worldfactory.cpp pull a random name for the created World.
Fixed up the formatting for the json files

My text editor had placed tabs where there should have been spaces, I've
fixed that up so the formatting should be fine now.
Fixed up recipes.json

The diffstat made it look like I'd essentially put one recipe in the
middle of another one. I've shifted the recipe for the sandals to the
bottom of the file. Also increased the crafting time to 20 minutes.
Removed redundant code from get_next_valid_worldname()
Merge PRs #4530, #4569, #4607, #4619, #4636.