Updated bios of committers
Fixed #20130 -- Regression in {% cache %} template tag.
Fixed #20059 -- Updated humanize tests to force 'en' language setting.
Remove unnecessary if conditions

if obj it None, it's None, there's no need to check it
Merge pull request #963 from richardcornish/master

Updated bios of committers
Fixed #18277 - Clarified startproject documentation.
Removed site cache clearing in TestCase._fixture_setup

The test suite doesn't seem to suffer from this removal. Tests
should probably take care themselves to clear caches if they
depend on it.
Add link to object's edit page to message after saving in django-admin.

Refs #19361

Thanks Roel Kramer for tests.