Merge pull request #18 from pstch/develop

New documentation for models/mixins.py
Merge pull request #19 from pstch/develop

Mostly documentation fixes, some edge cases tested
Merge pull request #20 from pstch/develop

More documentation, Py3k
Merge pull request #21 from pstch/develop

Making model url pattern regex use ^ and $
Merge pull request #22 from pstch/develop

Bump version to 1.4.0
Merge pull request #23 from pstch/develop

Patch docs
Merge pull request #24 from pstch/develop

Wrong version name
Bump version to 1.4.1