Re: [matplotlib-devel] Histogram normalization and overflow bins

Tom, ``When we drop numpy 1.5''?  I thought we already had... I mean we 
only test numpy 1.6 on Travis...

For the rebinning exercise, I don't have time to look, but I would 
expect a similar trick to imshow, quiver, etcetera when I want to 
compare to a baseline (e.g. for animation).  Namely I calculate the 
normalisation parameters first, and then apply those parameters on 
subsequent plots.

To ease the user, we could add a method to return the binning parameters 
from a single binning exercise, and then give an option to pass those 
params in to subsequent plots.