Removed methods for generating a fake cashbox total.
   That api is no longer in this app
   calpoly/api/utils.py: Fixed a typo
   calpoly/frontend/static/js/fake.js,
   calpoly/frontend/static/js/generate_methods.js: Remove fake cashbox total methods
   Added migration for finance settings models
   migrations/versions/40401384000c_finance_settings.py,
   calpoly/finance/models.py: Added finance settings table module
   Make permissions string longer
   calpoly/finance/models.py,
   migrations/versions/40401384000c_finance_settings.py: Change permissions string length from 32 to 128 bytes

PEP8