Moved OAuth support out of DRF and into a separate package, per #1767
Removes OAuth dependencies from tox configurations
Merge branch 'version-3.1' of github.com:tomchristie/django-rest-framework into oauth_as_package

Conflicts:
	.travis.yml
Merge branch 'version-3.1' into oauth_as_package

Conflicts:
	requirements-test.txt
	rest_framework/compat.py
	tests/settings.py
	tox.ini
Merge branch 'jpadilla-oauth_as_package' into version-3.1
Merge