removed duplicate entry in 2.1.15
deprecate simplejson
Merge pull request #554 from juanriaza/master

Deprecate django.utils.simplejson in favor of Python 2.6's built-in json module
Updated release notes
Added @juanriaza. Thanks
Use the correct static template tag in Django 1.5
Merge pull request #559 from michaelmior/django1.5-static

{% static %} template tag for Django 1.5
Added @michaelmior. Thanks!
Be more informative when reporting import errors.
Merge pull request #561 from mjtamlyn/import-errors

When importing settings, don't suppress any old error which happens
Use ResolveMatch.view_name so namespaces work.
Merge pull request #562 from mjtamlyn/view-name

Support URL namespaces.
Added @mjtamlyn.  Thanks!
Added @juanriaza's `djangorestframework-msgpack` package to the docs.
Fix PAGINATE_BY_PARAM docs.  Refs #551
Respect blank=True on relational fields. Fixes #537
Note paginate_by=None usage.  Fixes #555.
Clean up test slightly.  Refs #552
Create separate *NullableOneToOneTests TestCase
Fix reference to BasicAuthentication in settings.