Changes:

• added a Creative Controls screen (accessible by pressing 'C'), where for now you can change the time of day
• many fixes to the FallingSand entities
• added a toggle to disable FallingSand (it will disable the falling animation; blocks will still fall)
• grass falls when there are no blocks underneath
• added support for texturepacks

Texture packs are directories located in the ~/deamdung/texturepacks directory.

Each contains a 'pack.conf', 'pack.png' and files to override.

Below there are two zipped texture packs - one from DrillCraft, and one from Minecraft, so you can see how it works.