Initial usage parser work
Refactoring usage notification parsing
Adding in some tests, renaming aggregate functions
Adding unit tests for usaging parsing
Refactoring views.aggregate_usage to be a bit more pythonic
Cleaning up views._process_usage_for_updates
Fixing up settings.py
Better lifecycle unit tests

Also, refactoring some DB calls for easier testing.
More lifecycle/KPI unit tests and some cleanup
Adding usage parsing unit tests, refactoring
Unit tests for RawData parsing
Reverting a few temporary changes to worker files
Removing backup file and correcting spelling