[devtools] qunit: update to 1.18.0 (closes #5533333)
* the logging API has changed (register callbacks instead of setting
attributes on the QUnit object)
* the logging callbacks all have a single "details" object argument
* the "main" div was renamed to "qunit-fixture" (this change is
responsible for all the churn in our own JS test files)
* QUnit can now build the DOM elements it needs for reporting from a
single "qunit" div
What's new in CubicWeb 3.21?
============================
New features
------------
* the datadir-url configuration option lets one choose where static data files
are served (instead of the default ${base-url}/data/)
Code movement
-------------
The cubicweb.web.views.timeline module (providing the timeline-json, timeline
and static-timeline views) has moved to a standalone cube_
.. _cube: https://www.cubicweb.org/project/cubicweb-timeline
API changes
-----------
* req.set_cookie's "expires" argument, if not None, is expected to be a
date or a datetime in UTC. It was previously interpreted as localtime
with the UTC offset the server started in, which was inconsistent (we
are not aware of any users of that API).
Deprecated code drops
---------------------
* the user_callback api has been removed; people should use plain
ajax functions instead
* the `Pyro` and `Zmq-pickle` remote repository access methods have
been entirely removed (emerging alternatives such as rqlcontroller
and cwclientlib should be used instead). Note that as a side effect,
"repository-only" instances (i.e. without a http component) are no
longer possible. If you have any such instances, you will need to
rename the configuration file from repository.conf to all-in-one.conf
and run ``cubicweb-ctl upgrade`` to update it.
* the old (deprecated since 3.19) `DBAPI` api is completely removed