Add blank line to test data file which should have a blank line.
Modify bulk loading functions to ignore empty lines.
Add generator (csv reader wrapper) (I thought I already added this.
Add try/except blocks for reading lines.
Add test for reading from a bad file.
Fix tests, adding fp.close() for every fp = open().
Rename some tests.
Add new test files for testing load inventory, and fix load inventory tests.
Fix get_liquor_amount to correctly sum different types of liquor in oz and ml
Add show-liquor-amounts script
Add load-liquor-inventory script