Version 0.2.3 alpha

The system for grass, trees, and sometimes sand (random ticks) has been revamped. Saving and loading an area won't give a tree growth boost, but patience (note: the chair blocks help with patience), even when the trees are unloaded, will let them grow.

Increased growth in general from growing on average once every 100 block updates to on average once every 70.

Blocks containing blocks (containers and veins) can no longer be placed into other containers without being emptied.

Note: chunk file sized increased by a couple bytes, but old worlds should be compatible with this new version. Back them up to be safe.