With this commit all dates in the UI are now consistently displayed.
I changed the long date format as suggested by @xkilian and confirmed by my own
research.
* DATETIME_FORMAT
* Before July 20, 2020 4:52 p.m.
* Now 20th July, 2020 16:52
"20th July, 2020" would be spoken as "the 20th of July, 2020" but the "the" and
"of" are never written.
The only exception is `object_list.html`. I tried it but there it does not
work so easily because the dates are passed to Jinja as SafeString.
* Use HTTPS everywhere (mechanical edit using util from https-everywhere)
```Shell
node ~/src/EFForg/https-everywhere/utils/rewriter/rewriter.js .
git checkout netbox/project-static/
```
A few additional changes where reset manually before the commit.
* Use HTTPS everywhere (mechanical edit using util from opening_hours.js)
```Shell
make -f ~/src/opening-hours/opening_hours.js/Makefile qa-https-everywhere
git checkout netbox/project-static/
git checkout netbox/*/tests
```
