Extra spaces in NaN cells in exported points csv

[J.D. Laurence-Chasen]

For both 2D and 3D point export, there are trailing (and sometimes leading) spaces in the header and NaN cells of the outputted csv file. This isn’t a problem for Maya, but is a big problem when reading the file into python – which sees those cells as strings rather than null. I’ve been manually replacing all ' NaN ' or 'NaN ' cells with ‘NaN’. Is this a possible fix?

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[J.D. Laurence-Chasen]

I see there are sometimes trailing spaces in the point names as well. The leading and trailing spaces in the data rows seem random?

[Benjamin Knorlein]

fixes #215 : removed white space around semicolons

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