This update fixes some minor issues, and significantly improves performance.

Issues fixed include:

• Elevation equations sometimes generated strange spikes.
• Tree Sapling Overrides would only grow in locations that used to be valid.

Performance improvements:

• 2D Noise cache was significantly optimized (PR by @BudG and @dfsek)
• Carvers were significantly optimized
• Ores were significantly optimized.
• Flora was slightly optimized.
• Population management was optimized (PR by @BudG)
• Snow was optimized
• General minor optimizations to lots of different things (PRs by @dfsek and @BudG)

Additions:

• Several functions were added to noise equations. You may now use bitwise functions in your equations, along with a proper PRNG, which comes with a new variable, seed, which is set to the world's seed.

This update will break parity with old worlds, most notably with ores and carvers. Be careful when updating!