* upstream/master: (54 commits)
  docs/renderers: `StaticHTMLRenderer` instead of `TemplateHTMLRenderer`
  Django 1.8 is no longer in beta
  Removed deprecated '.model' attribute check
  Update example of nested data
  Update serializers documentation (removed feature)
  more sp fixes
  Fix typo.
  Workaround for bug in pip
  Test against Django's master branch
  Django 1.8 released
  Should use "ordering" in model Meta, not order_by
  `query_params` in favor of `QUERY_PARAMS`
  Fixed docstring typo
  Reference typos in fields.md
  Use default reason phrases from HTTP standard.
  Metadata should detect null boolean field type.
  Fix older release notes link
  Try to resolve pep8 versioning clash.
  Swapping to hassattr logic for pk attribute references in relations
  Added enhancement for pk reference in many=True relations
  ...