% increase in significance plots

[kratsg]

We will like a utility that is able to do this. The best idea is to separate the plotting functionality into two pieces.

One piece produces a plain-text file of the points and values at each point, while another piece creates the actual grid. This allows us to diff the text-files separately and not have to remake them... and makes this portion easier to do.

[kratsg]

Damn. Even so many months later -- I have the same concept and this is made now as part of the summary.json functionality documented in readme.