Add extra args/kwargs to authtoken's views (#3718)

Import parser added to docs in API guide

Added missing import statements in code snippet of API guide.

Closes-Issue: #3727

Fixed suggestion for format in test renderer

Rendered would suggest using format='JSON' when the right argument is
format='json'.

Add app_name to rest_framework.urls.

This allows users in Django 1.9+ to include the authentication urls
without specifying the namespace, as in:

    urlpatterns = [
        ...
        url(r'^auth/', include('rest_framework.urls'))
    ]

Admin and API browser fails for views without a filter_class

Fix #3628 by implementing __getnewargs__()

Fixed versioning regexp

booking list regexp was fixed in https://github.com/tomchristie/django-rest-framework/commit/8b97bb8f68970881190a3b62cf53495cc0e20786 but single booking wasn't for some reason, and `v1v2/bookings/123/` shouldn't be allowed here

Uses #3597, but without using `Context`.

Fixed #3679 -- UUID Validation

Use latest release of Django 1.9

#3228 - add confirm modal for delete

allow setting a custom Django Paginator class

Closes #3682.
Thanks for the report!

Add missing link to django-crispy-forms

Updated NestedBoundField to also handle empty string when rendering its form

Reveal previously hidden AttributeErrors and TypeErrors

Quietly catching `AttributeError` and `TypeError` when calling
`get_queryset()` is rather insidious, as those exceptions get caught no
matter where they might happen in the call stack.

Make tests pass on Windows too

If a NestedBoundField field has a value of `None` and is inside another NestedBoundField field, it will have its value converted to an empty string while the form of its enclosing field is being rendered. So, NestedBoundField fields with an empty string value must be handled the same way as NestedBoundField fields with a `None` value.

Windows Pythons seem to like printing addresses in upper-case, while Linux
Pythons like lower-case hexes.

This led to an amusing (for a given value of "amusing", anyway) situation
where some repr tests would fail if the objects they were testing happened
to be allocated at an address with a hex digit in the range A..F.