Fixed #19244 -- Provided examples for some built-in templatetags and filters 

Thanks terwey for the suggestion.

Typo in comments doc

This is a provisional change. See #19221 for details.

Fixed #18582 -- Added a no-op close to BaseCache

There was a problem caused by Postgres 9.0+ having bytea_output default
value of 'hex' and cache backend inserting the content as 'bytes' into
a column of type TEXT. Fixed by converting the bytes value to a string
before insert.

Thanks Matt McDonald for the patch.

Refs #15863.

Thanks trbs for the report and the patch.

'coverage html' did fail without it.

Thanks to Claude Paroz for figuring it out.

Fixed invalid ipv4 mapped ipv6 addresses in docs

Thanks orontee for the report and initial patch.

It is simpler/cleaner to have all pagination tests in a single file.
Refs #16122.

Thanks to Christian Oudard for the report and tests.

Thanks d1ffuz0r for helping with the patch.

Thanks Giovanni Bajo for the report.

Thanks DavidW for the report.

Thanks als for the report.

Thanks Michael Manfre for the report and initial patch and
Tobias McNulty for the review.

Thanks Fred Palmer for the report.

Thanks simonb for the report.

Refs #18194.

Browsers consider the first newline in textareas as some display
artifact, not real content. Hence they are not sending it back to
the server. If we want to keep initial newlines, we have to add one
when we render the textarea.
Thanks bastih for the report and initial patch.

d5c3c45f

a70492e6

A test in Model Forms test was specifically referring to a fixed
primary key, which was now being used up in a newly committed.
This has been worked around by specifying a higher primary
key.

Demonstrate how to round to integers using floatformat templatetag

Demonstrate how to round to integers using floatformat templatetag

Fixed #18949 -- Improve performance of model_to_dict with many-to-many