- In v9 `account.period` has disappeared, so now the wizard asks for start and end dates.
- `ir.sequence` has changed logic too, this module is now adapted.
- Old tests had to be run through the CLI. New tests work with standard test system.
- Old menu parent does not exist anymore, so it is now moved to other place.
- Old license & copyright headers are now updated, respecting old copyrights where found.
- `.pot` file removed.
- README added.
Related to https://github.com/OCA/account-financial-tools/issues/311#issuecomment-219378169.