Added missing default style for FileField

Renamed validated_attrs to validated_data to be more in line with other code

Improve checks for nested creates and updates.

Closes #2194.

Update build status icon on github pages page.

Not allow to pass an empty actions to viewset.as_view()

Use svg version of travis build status badge

Updated serializers documentation

There was an error in the docs: the field extra_field_kwargs of the serializer's Meta doesn't work. The field must be extra_kwargs instead.

Fix typo in serializers doc

FileUploadParser. Raising StopFutureHandlers removes any handlers not yet run for the active set. Closes #2109.

Merge branch 'fixes/2013' of git://github.com/gregmuellegger/django-rest-framework into gregmuellegger-fixes/2013

Consolidate Django and test requirements

Move models to respective test modules

Merge upstream

Change allow_none to allow_null in 3.0 announcement