output = MakeGammaMonotonic(input)
Make input monotonically increasing from lowest value.
This version also forces the last value to be 1, and then
enforces decreasing downwards from there, after the
enforcement of increasing from 0.
3/1/99 dhb Handle multiple columns.
8/03/07 dhb Old routine just enforced non-decreasing. Fixed to make strictly increasing.
3/07/10 dhb Wrote from MakeMonotonic.
Did not want to change behavior of MakeMonotonic in case it is called from
programs unrelated to gamma fitting.
3/08/10 dhb Actually do the enforcement of 1.
5/27/10 dhb Use a larger bump, 100*eps