Update notes for 29th May

Added new erosion speed with configurable value

Added configuration setting for whether sea level changes the temperature

Added configuration setting for whether ocean water rises when editing land under it

Fixed serious performance issues on Nvidia cards introduced in previous update

Overall simulation ~10% better performance, much better performance when zoomed in on trees

Minecraft exports now feature water with fractional heights

Fixed exporting Minecraft worlds with custom sea levels

Fixed rendering issue with topographic and other data overlays at map edges

Fixed behaviour on map edges where dirt would form a barrier

Temperature map now properly updates when game is paused and at game start

Fixed dirt/sand display on map load when paused

Fixed bug with sea levels above 0m not saving/loading properly

Fixed bug with shrubs not appearing when sea levels are lowered

Fixed bug with cold rocks rendering differently to warm ones

Fixed sand and dirt coverage in Minecraft export

Fixed grass coverage in Minecraft export

Fixed bug with water disappearing after earthquake

Limited ice height to prevent buggy behaviour

Fixed heightmap export when image dimensions are lower than world dimensions

Fixed bug with earthquake arrows direction when slip is negative

Fixed bug with ocean water heights not being saved/loaded properlyn