* refactor: replace datetime.now with timezone.now
* refactor: migrate model fields to use timezone.now as default
* refactor: replace datetime.today with timezone.now
datetime.datetime.today() is equivalent to datetime.datetime.now(); both
return a naive datetime with the current local time.
* refactor: rephrase datetime.now(tz) as timezone.now().astimezone(tz)
This is effectively the same, but is less likely to encourage accidental
use of naive datetimes.
* refactor: revert datetime.today() change to old migrations
* refactor: change a missed datetime.now to timezone.now
* chore: renumber timezone_now migration
* chore: renumber migrations
in order to autogenerate dotted path url pattern names. Updated a number
of url reverses to use dotted path, and removed explicit url pattern names
as needed.
Changed some imports to prevent import of ietf.urls before django
initialization was complete.
Changed 3 cases of form classes being curried to functions; django 1.10
didn't accept that.
Started converting old-style middleware classes to new-style middleware
functions (incomplete).
Tweaked a nomcom decorator to preserve function names and attributes, like
a good decorator should.
Replaced the removed django templatetag 'removetags' with our own version
which uses bleach, and does sanitizing in addition to removing explicitly
mentionied html tags.
Rewrote the filename argument handling in a management command which had
broken with the upgrade.
- Legacy-Id: 12818
