[1.6.x] Fixed the base class note in the Date Views docs.

Backport of 42197e31aa from master
[1.6.x] Added more examples to the get_object_or_404 documentation.

Backport of ebfa508fa32b27de6f3e2ca04c81b46408b0506e from master.
[1.6.x] Recommended setuptools in the reuseable app tutorial.

setuptools has merged with distribute.

Backport of b5eef8535a from master.