Expose the cutoffs in the driver scripts

[martin-ueding]

Currently the cutoffs are in the library. This means that one has to change the library in order to run the script. It would be much better to have them exposed in the code. While we are at it, it would be much better to have a real non-interacting energy cutoff instead of this strange sum of momenta stuff. The user would specify the lattice pion mass and the spatial extent and a cutoff in multiple of the pion mass. The code would then compute the non-interacting energies and decide based on that.

[urbach]

I agree! -- Carsten Urbach mobile

[urbach]

Yes. -- Carsten Urbach mobile