Hardcore Island

Breaking changes

- World generation customization now uses chunks as units instead of arbitrary unscaled units. Before if you set island size to 8 island size would end up about 32 blocks. This wasn't quite intuitive, so now that units are chunks, island with size 8 would be ~128 blocks from the center to the edge of beach

- This affects existing worlds if all chunks in the maximum radius (as this uses new units, its about 4 times the outer radius of the wasteland) have not  been already generated

- In other words: if you have existing world with large biome radiuses, updating might not be very good idea

Other fixes/changes

- Adjusted default biome radiuses. Lava ocean and wasteland are considerably smaller now

- AoA mob spawn blocking should now work a bit more reliably

- Fixed bedrock generation (Reported by FrostStormRage)

0.3.1 Fixes

- Fixed some biome layers generating one block too thick