Breaker
-------
* This block is only available if digilines and/or mesecons are loaded.

Breakers dig the node directly in front of them and drop the item at the
back of them. The node is only dug if the breaker has a tool that can
dig it, of if it can be dug by hand. The tool is worn if used. Also acts
as a digilines conductor. If the hopper mod is loaded, will take tools
from the top and sides.

Only the owner can dig or access the form of the locked version.

UI

Channel - digilines channel of breaker.
Top 1 slot inventory - tool to use.
Bottom 32 slot inventory - player's inventory.

Mesecons
	Digs the node in front when power is turned on, if it can.

Digilines messages

"break"
	Digs the node in front when power is turned on, if it can.

"eject side"
	Drop the tool in the tool slot at the given side. Valid sides are "left",
	"right", "back", "front". If side is omitted or invalid "front" is used.

When a breaker digs a node or wears out the tool a digilines message is
sent with the puncher's channel. The message is a table with the following
keys:
{
	action = "<action>",
	name = "<name>"
}

action
	Will be "break" or "tool".

name
	For "break" action the registered node name of what was dug.
	For "tool" action the registered tool name of the tool that wore out.