fixing inconsistent output in predict_percentiles; making tests more statistically friendly
other predictors output pd structures, this doesn't. Change it so it does
Merge pull request #84 from CamDavidsonPilon/minor-bump-to-4.3.1

fixing inconsistent output in predict_percentiles; making tests more sta...
new sort test + autolinting
Fixed typo
Merge pull request #85 from JonathanSeguin/patch-1

Fixed typo
ENH: Plot now accepts ax=None