Accessing an object on which voting has been enabled using a field of a related object or using the get_object_or_404 shortcut will now use the VotableManager: therefore, the vote_total attribute will be available
The previous commit solved the 'related fields' problem but not the get_object_or_404 one. This commit does.
Merge pull request #18 from Afnarel/solve-related-fields-access

Solving issue #13 (related fields access)