Use histograms with logarithmicly-sized bins

These are very cool and fancy! In a single pass you get good resolution for
small values (not all lumped in one bin) without wasting many small bins for
large values. You also do no loose any values at all thanks to underflow and
overflow bins at each end. Number of bins is configurable.

Signed-off-by: Benjamin Poirier <benjamin.poirier@polymtl.ca>