Katie Smith c57f33a02d Use real letter_rates in tests ...

Added the letter_rate table to the list of tables which does not get
deleted after each test run and changed the tests to use the real letter
rates.

Also removed the letter rate DAO since this was only being used in
tests, so was no longer needed.

2018-07-10 11:31:18 +01:00

..

test_billing.py

Use real letter_rates in tests

2018-07-10 11:31:18 +01:00