Fixed typo.
Fixed #17416 -- Added widgets argument to inlineformset_factory and modelformset_factory
Fixed #19125 -- The startproject command should validate the name earlier

Thanks Łukasz Rekucki for the report and the patch.
Minor optimization in the static serve view.
More i18n makemessages tests tweaks.
Fixed a typo.
Merge remote-tracking branch 'upstream/master'