REL: v3.2.1

This is the first bugfix release of the 3.2.x series.

This release contains several critical bug-fixes:

• fix Quiver.set_UVC calls with scalar inputs
• fix bezier.get_parallels failure from floating point rounding errors
• fix markers specified as tuples (polygons, stars, or asterisks)
• fix saving PNGs to file objects in some places
• fix saving figures using the nbAgg/notebook backend
• fix saving with tight layout using the PGF backend
• fix setting custom datapath in rcParams (note: it is still deprecated)
• fix various issues running setup.py in non-CI environments
• fix xpdf distiller
• various minor bug and documentation fixes