Dont allow the bucket to replace nodes that are not buildable to

Follow the naming convention and make the first letter Bucket capitalize...

Update default_water.png to the new water textures

Add animation for water

Fix slab -> full block transformation

stop using hacks for sign input

Move falling to builtin

Emtpy bucket

-> Empty bucket

Fix crash when a player happens to join the server quicker than the creative inventory filler is called