Removed sphinx generated _build dir
Update .gitignore for sphinx generated doc/_build
Updated to use MarketingProductUsage from splice.common.api and added unit test.
- Unit tests for 'sreport' may be run from 'run_tests.sh'
- Logging of unit tests will now go to /tmp/*.log
- Hooked up APIs for Rules, Product, Pool to dev instance of urls.py, will need more testing
Adding a temp workaround for MarketingProductUsageResource so it can run with manage.py and not require a X509 cert
Update playpen script and sample data for MarketingProductUsage