CityWorld

• Added DESTROYED to the world style list to make it easier to create normal but decayed worlds. For folks using Multiverse try "mv create Destroyed normal -g CityWorld:Destroyed".
• Added a lot more stuff to Astral, including a place holder for the Nexus
• Fixed a bug where chests would be populated with ores instead of useful stuff
• Fixed a bug where trees would cause house roofs to generate oddly
• Re-textured the sewers to make them nicer to look at... a lot more spooky and "realistic"
• Re-textured the roads to make them nicer to look at... and make those darn ores quit showing up
• Continuing to work on Astral, feel free to visit but don't expect much yet (for folks using Multiverse try "mv create Astral normal -g CityWorld:Astral")

A bit slow at the initial population but once everything is "populated" then all is good