gEDA-dev: gerber importer/panelizer

[DJ Delorie]

I've had a request (which I'm considering doing) to have one of our
tools modified to be usable as a gerber panelizer.  Apparently, there
are no open source panelizers.  Anyone have any ideas about how to
best do this?

* Edit gerbv to be able to read multiple gerbers and output a
  composite gerber.

* Edit pcb to be able to import gerbers as boards.

* Edit pcb to be able to import gerbers as elements.

* Edit my panel2pcb and pcb2panel to use gerbers instead of pcbs.

* Write a new tool.