Update the example in the usage section.

- Fix naming convention
- Add missing return statement
Merge pull request #38 from berkerpeksag/patch-1

Update the example in the usage section.
Fixed typo in readme.rst
Merge pull request #39 from jerenept/patch-1

Fixed typo in readme.rst
Update Django version.
Copyright updates for 2013.
Update README.

Remove duplicate content.
Remove the readme rule from Makefile.