REL: v2.1.1 The first and only planned bug-fix release for the 2.1 series. This release include many bug and documentation fixes. Highlights are: - change default logscale behavior to clip - fixed webagg import errors - tweaks to polar ticks - fixed exception when guessing afm family names - update manifest to include all doc files - improve masked array handling in pcolormesh - fix segfault from reading invalid png - fix blocking_input - fix bug resulting in huge multi-page pdf files - make `show` in nbagg take args as other backends do - several fixes to OSX backend - restore positional arg handling on Figure.legend - fix bugs in interactive navigation - fix issues when panning with invalid limits - fix bug with fully masked arrays passed to imshow