docfix: update installation example to work with django 1.6

[wilsaj]

looks like django.conf.urls.defaults was deprecated as of django 1.6: https://docs.djangoproject.com/en/1.6/internals/deprecation/#id1

[tomchristie]

Great, thank you!

[qooleot]

I'm sorry for being slow (new to django, python, and the rest framework), as I might very well be reading this wrong.

django-rest-framework says it supports django 1.3, but I think django.conf.urls only appeared in 1.4:

https://docs.djangoproject.com/en/1.4/topics/http/urls/

I don't know if you're soon to be dropping 1.3, now that 1.6 is out and we should ignore this, or alternatively I can create a tiny pull request to add a small comment above the example?

[tomchristie]

@qooleot - You're correct that the quickstart example won't be correct for 1.3 anymore, although 1.3 is still supported, and yup I think we can probably do without the note of 'In 1.3 this line should be....' since we'll be dropping it soon enough.