-db : run setup_py to rebuild your database
-ow : overwrite concepts and collections
-st : stage concepts and collections
-s : a zipfile located on github or locally
-y : accept defaults
To load data the target must be an arches project rather than the arches application:
arches-project create myproject
cd myproject
python manage.py packages -o load_package -s https://github.com/archesproject/arches-dev-training-pkg/archive/master.zip -db true