Fixed missing imports from 16e5fdd9cb8cca4d203b9255a9771b3c370e37d6.
[1.5.x] Fixed the base class note in the Date Views docs.

Backport of 42197e31aa from master
[1.5.x] Recommended setuptools in the reuseable app tutorial.

setuptools has merged with distribute.

Backport of b5eef8535a from master.