Modified auto_remap to ignore NaN's in the recalculation of the color map. Added example (data + python script + output figure), where data contains NaN's which are kept unmodified and plotted in black (0 values in white).
Corrected indentation. Checked return value problem for auto_remap was corrected and eliminated commented lines.
Removed test data and image, replaced with script which generates data and plots it.
Removed extra spaces.
Removed old test file.
Removed old file
Merged files, no changes to functionality.
Removed spurious line in test script
Merge pull request #1 from leonorgg/master

Adding NaN functionality to chr_matplotlib