This update is huge!
It adds:
-Stone! A new material mined from the ground!
-Pickaxe! Used to mine stone!
-Item selection: Click the "Next Block" button to move through your inventory
-A proper HUD, complete with a translucent white background
-A tutorial section, which gives you a brief idea on how to play
In addition to all that, I have updated my world generation system:
-There is now a 1 in 5 chance that flowers will spawn, instead of a 100% chance
-Worlds will (hopefully,) be less cluttered.