Merge pull request #3 from wesleykendall/develop

Added app option to update_initial_data management command
Delete tests.py
Update setup.py
Merge pull request #5 from wesleykendall/develop

Added deletions to dynamic initial data
Merge pull request #7 from wesleykendall/develop

uses djangos import_by_path method
Merge pull request #8 from wesleykendall/develop

fixed error related to handling deletions of multiple objects
Merge pull request #10 from wesleykendall/develop

django dynamic initial data handles proxy models properly
improperly configured error now thrown
deletions are more robust