Fixed an error with tile entity removal (mostly seen when removing hoppers)
Fixed chunk unloading during async relighting
Fixed some ids not pasting with the correct data
Fixed pasting above the world height removing incorrect blocks on undo
Fixed item spawn limiter also cancelling physics
Fixes some issues with the API

Some compression improvements (level 9)
Added command brush //brush cmd <cmd1;...>
Added image export format (low quality isometric render)
- //schematic save image <file>
- //download image
Added per player history limit (defaults to 20MB per player)
- Instead of a hardcoded number, player history can be limited by the amount of memory it uses