Binning adjustments; change gen jet to 25; add abseta(bb)

I've tried to adjust the binnings for the observables for which either the correlations in Asimov are large, or the unblinded fit simply didn't converge, or the last bin contained a lot of overflow. In the latter case, I've sometimes even added an extra bin to increase the range.

Ideally we would have made several incremental runs to check all of these, and the gen jet pt cut change, but time is short so this is a bit of a bet that things will turn out OK...

The binning for abseta(bb) is a wild guess, so if it doesn't work we'll just skip it this time.