Previously output was ordered in whatever order the set happened to offer them in. This was not stable between different Python versions.  Ordered alphabetically(ish) should be more human friendly, and will simplify the tests.

Command names are case insensitive.  "glance reportGen" and "glance reportgen" are synonymous.

However, help requests remain case sensitive. "glance help reportgen" fails.  This patch makes it case insensitive.

Typical usage has changed; not usually just invoked through the "glance" binary. Change documentation to match.

fix handling of _unsigned attribute in nc files; units=1 no longer display on plots; commands on the command line should be case sensitive; better handling of shape () data

adding a new density scatter plot and putting limits on how much data glance will be willing to plot in traditional scatter plots and hex plots

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added mapped figure plotting and plotting geotiffs (un-mapped); simplified how some data availability and correctness checks are done

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adding a check to stop some of the calculated statistics from crashing when a variable is all fill data

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cleaning up the tagged data when drawing mapped figures with tag data so that the mask will be plotted correctly when only a few points are true

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adding support for correcting AWIPS data type distortion on load; note this isn't yet hooked up to the outer methods in compare

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