* Use absolute imports and rename package to ihatemoney
* Add a ihatemoney command
* Factorize application creation logic
* Refactor the tests
* Update the wsgi.py module with the new create_app() function
* Fix some styling thanks to Flake8.
* Automate Flake8 check in the CI.
A user with a "0.00" balance would have either a "+0.00" in green or a
"-0.00" in red, depending on the exact value of the floating-point value.
Fix this by simply rounding to 2 digits before comparing to zero.