This commit deletes account_cancel module and squash it into account.
The 'update_posted' field is changed by 'restrict_mode_hash_table' field.
If 'restrict_mode_hash_table' is true, you have a hash chain on your account journal.
These hash chains prove the inalterability of your accounting.
l10n_fr_certification module is deleted and all hashing method are moved in account module.
Now, you can download a PDF report about your inalterability in the company settings.
If you have l10n_fr or l10n_post_cert installed you have more information on this report
like the inalterability of pos orders, etc.
Task ID: 2039160
Florian Gilbert
ab483a3a66