Fixed #23399 -- Optimized django.utils.http.int_to_bas36()

Thanks liminspace for the patch and Keryn Knight for benchmarking.
Fixed #23350 -- Updated mod_wsgi auth example to use less memory.

Thanks Graham Dumpleton for the report.
Fixed missing trailing parenthesis in docs/releases/1.7.txt
Fixed #11775 -- Made ABSOLUTE_URL_OVERRIDES work with models that don't define get_absolute_url().

Thanks jukvalim for the report and initial patch,
and Preston Timmons for review.
Fixed #23398 -- Added helpful error message when runserver is accessed via HTTPS
Fixed #23442 -- Added django.__version__ per PEP 396.

Thanks abhillman for the suggestion and Claude Paroz for review.
Avoid the word "stupid".

There's always a better word.
Fixed #22267 -- Fixed unquote/quote in smart_urlquote

Thanks Md. Enzam Hossain for the report and initial patch, and
Tim Graham for the review.
Fixed urlize after smart_urlquote rewrite

Refs #22267.
Note re migrations importing custom fields
Merge pull request #3208 from gregplaysguitar/master

Note re migrations importing custom fields
Fixed #23368 -- Overhauled the Welsh formats.py file.

The only debatable thing here is setting FIRST_DAY_OF_WEEK to 1.
The only examples of calendars I can find in Welsh start on Monday,
for example, the calendar on S4C (the only all Welsh TV station).

http://www.s4c.co.uk/clic/c_clicschedule.shtml