This is inspired by Angluar.js
(https://github.com/angular/angular/blob/master/CONTRIBUTING.md), among others.
Thanks to Jeff Triplett for the prod.

Thanks pattypatpat for the report.

Thanks Simon Percivall for the report, and Simon Charette and Tim
Graham for the reviews.

Added a running count of the objects processed by loaddata when
verbosity >= 3.

Thanks to charettes and priidukull for investigating the issue, and to
kurevin for the report.

This fleshes out the documentation around all of the exported
Javascript functions available from the ``javascript_catalog``
view.

Fixed queries where an expression was used in order_by() but the
expression wasn't in the query's select clause (for example the
expression could be masked by .values() call)

Thanks to Trac alias MattBlack85 for the report.

This would break upcoming changes and AdminSite assumptions about
having an app_config for each application that has registered
models.

Refs f8e8853b

Reflecting the unfortunate reality.
Still plan to be involved, but feel I need to recognize the degree to
which I'm only on the periphery these days.

Instead of setting ``warning_stream`` in the docutils config overrides
to ``False`` I opted for filtering the stderr in the tests to keep the
error output showing up in server logs.

Thanks Tim Graham for the report and review

Changed SessionBase.pop's second argument to explicitly be default=None
rather than *args since _session is always a dict. Thanks gabor for the
report and Tim Graham for the review.