ENH: Add new perceptual colormaps.
ENH: CH-CH-CHANGES.txt
ENH: Add Kenneth Moreland's CoolWarm colormap and generator function for general diverging colormaps.
ENH: Add CubeHelix colormap from Dave Green.
ENH: More CHANGES
ENH: More credits.
ENH: Update whitepoint values and reference.
ENH: Smoke test for colormaps. Remove unused color transformations.
Merge pull request #204 from enthought/feature/new-colormaps

New Perceptual Colormaps