Sturdy Farmland

New Feature:

• Turning Farmland to dirt.
  You can now use a shovel to flatten farmland into dirt, like you would turning grass into a path block.
  This is configurable in the server config.

Fixes:

• Fixed Util.setMoist being called when it shouldn't.
  This should fix several things, like error spam when using buckets, and water bottles not being able to be used on dirt.