Added some assertions to account.py. Cleaned up and simplified the
-rw-r--r-- 15 .gitignore
-rw-r--r-- 16482 accounts.py
-rw-r--r-- 753 constants.py
-rw-r--r-- 7110 parameters.py
-rwxr-xr-x 11215 retire.py
-rw-r--r-- 38 secrets.py
-rw-r--r-- 2666 tax_brackets.py
-rw-r--r-- 4598 tax_collector.py
-rw-r--r-- 350 utils.py