Fix: You can't place water in the range of a sponge. (Well, I just figured out that this does NOT work yet. I hope it will finally come in the next release! :) )
New: Radius is now configurable.
New: Adding / removing sponges should now work with WorldEdit.
Sometimes flowing water that is cut from its source doesn't drain correctly
You are still able to place water in the range of a sponge.