accounting entries is marked with a specific key.

TG-380

 remove old 11.0 todo, remove description from manifest as Odoo uses readme by default and they are the same

This allows matching accounting entries that were on the wrong account but the
partners of which have been modified later on.

* No accounting entry search when no accounts/partners (otherwise attempts to
  fetch every entry in the DB).
* Sync filters between account type / account / partners.