Updated quick start project set up order
Issue #1707: Add documentation to api-docs.viewsets notifying users
that they should use the get_queryset() method when overriding a
ModelViewSet method, such as list(). Otherwise, since queryset is
a static property, the value will be cached for every instance of
that ViewSet.
Issue #1707 - Add documentation about the caching of `GenericAPIView.queryset`
to the `queryset` property, `get_queryset()`, and do generic-views.md; remove
changes to the viewsets.md documentation from my last commit.
Issue #1707 - Add info about queryset property caching to get_queryset() docs.

Add documentation to the get_queryset() method of generic-views.md regarding
the caching of the queryset property.
Merge pull request #1720 from tomchristie/feature/django_guardian_cleanup

Django & Django guardian updates
Add django-rest-framework-mongoengine link. Closes #1722 Closes #1562 Closes #1545
Add platinum sponsors
Updated Permissions doc link to Django docs

The previous link went to version 1 docs so it was a dead link.
Merge pull request #1724 from kevinlondon/patch-1

Updated Permissions doc link to Django docs
Kickstarter sponsors
Merge branch 'master' of https://github.com/tomchristie/django-rest-framework
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Fix LaterPay link
Added ProReNata AB
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Update Nephila sponsorship
Added pathwright
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