openplotter pi-gen

[mgrouch]

Openplotter pi-gen is a clone of raspberry pi pi-gen.
I think its better have an image build tool which override
defaults instead of cloning it.

I came across Revolution Pi and I think they do their custom
raspbian image in cleaner way.
They call it image bakery. The code is here

https://github.com/RevolutionPi/imagebakery


May be it's easier for future releases to use that approach?

What do you think?

Thanks,
--MG