refs #6039
- add `jquery-deparam` ember testing dependency for use in mirage config
- setup necessary mirage fixtures & endpoints for successful testing of setup flow's happy-path
- add happy-path acceptance test for setup flow
refs #5652
- safari doesn't support the nice toLocaleString function
- this adds a manual, cross-browser way of adding commas in the right places to long number strings
No issue
- Prevent download count ajax request from running forever, even after setup is complete.
- Remove unneeded setup routes and controllers.
- Refactor to use ES6-imported ajax.
- Refactor to use injected services.