Refactored the BaseEvolutionOperations implementation to use the methods now exposed by the Django creation backend.
Refactored the BaseEvolutionOperations implementation to use the methods now exposed by the Django creation backend.

git-svn-id: 48f3d5eb0141859d8d7d81547b6bd7b3dde885f8@158 8655a95f-0638-0410-abc2-2f1ed958ef3d

clones/django-evolution