Fixed spelling ("dependant" -> "dependent")

Dependent means reliant on.
A dependant is a person like a child or spouse.

Thanks Andrew Wilcox for the report.
Fixed #9523 -- Restart runserver after translation MO files change

Thanks to Krzysztof Kulewski for the initial patch.
Fixed #21324 -- Translate CSRF failure view

Thanks to Claude Paroz for the original patch.
Fixed #21354 -- Documented contrib.redirects defaults to 301 redirects

Thanks glarrain for the suggestion.
Merge pull request #1799 from Bouke/tickets/9523

Fixed #9523 -- Restart runserver after translation MO files change
Continue to attack E302 violations
Fixed #21341 -- Eased https requests with the test client

All request methods of ``django.test.client.Client`` receive a ``secure``
argument that defaults to ``False`` indicating whether or not to make the
request through https.
Thanks Aymeric Augustin for the review.
Fixed #21373 -- Typo fixed in i18n docs

Thanks rpq at winscores.com for the report.
Fixed #21366 -- regression in join promotion logic

The regression was caused by ecaba3602837d1e02fe1e961f7d3bf9086453259
and affected OR connected filters.
Django should be capitalized in text
Merge pull request #1847 from Bouke/docs/django

Django should be capitalized in text
Fixed #21375 -- related_name='+' clashed with other '+' names
Fixed #21302 -- Fixed unused imports and import *.
Correct flake8 violation E261
Merge pull request #1848 from rayashmanjr/master

Correct flake8 violation E261
Fixed flake8 E241
Replaced a hardcoded "2" with the right named constant
Merge pull request #1849 from brabadu/master

Fixed flake8 E241
More attacking E302 violators
Fixed #14511 -- bug in .exclude() query