…et to None

In the example given, the forward argument in line 590: ```forward=(forward.Self())``` isn't a tuple. So I've updated the example to correct the error and also added a reminder that the forward argument expects a tuple.

Django2 introduced the SELECT2_TRANSLATIONS dictionary, and this
was imported into the dal_select2.widgets module, causing an ImportError
when run against any version of Django < 2.

Fixes #1029

Django 2.1 has been released last week, so adding it to the build matrix

This makes select2 copy the CSS classes from original select element to the generated element.

…ms with their own jQuery.

This was a major mind bender to figure out, but the detailed comments I've left
should (hopefully) explain what's going on.

so that tox uses python version specified in travis.yml

Addresses #1058

…so be valid Python modules

Switches from using an unsupported private API (which changed and broke
from django-querysetseqence>0.7) to a newly added public api method
(`get_querysets`) which achieves the same thing.

Depends on clokep/django-querysetsequence#53
Supersedes #1056
Fixes #1050

refs #1087

your application to style the create option with custom css.

Breaking change in travisci.
See
https://changelog.travis-ci.com/ubuntu-xenial-16-04-build-environment-update-86123

https://gitlab.com/pycqa/flake8-docstrings/issues/36

Change from the default 79 to 88.

Still in the index, but not .gitmodules anymore.

There was a broken entry

Get the browser based tests working on travisci again.

Splinter deprecated phantomjs, so switch to headless firefox.

Upgrade the travisci environment to unbuntu xenial (geckodriver fails in
default trusty, easier to do this then figure out the real problem with
the geckodriver/firefox/selenium versions).

Also add python 3.6 test run, since 3.5 fails (unrelated to the
browers based test) and we atleast get a green checkmark from travis
to show it can work.

The 'global' test browser is never closed.

Pytest-splinter is already in the project,
so let's use its session scoped browser, which nicely closes itself
after the test session.

Fixes #1130
Fixes #1053

Add myself to authors

There is a small typo in src/dal/forms.py.

Should read `writing` rather than `writting`.

This fixes the current warnings and adds a CI job to prevent such
warnings to occur again.

Also disables the travis job because it's not working anymore, despite
that it's still working great on my laptop which is enough for me, given
a pretty low contribution activity on this repo.

- Minor update: https://docs.djangoproject.com/en/dev/releases/1.10/#using-user-is-authenticated-and-user-is-anonymous-as-methods
- Does work as a property and a method up until Django 2.0

This reverts commit 4d92e83