Accounting: delegate proxy field value
Catalog: translated title search must fallback on title using an AutoQuery, not a SimpleQuery

otherwise we have no % expansions
Invoicing: translate qty unit
remove obsolete payment conditions tabs on invoice
Accounting: fix condition to display project column on accounting transaction views
Disallow cancelling an accounting transaction when it is still building
Make sure we can display ZMI when preference tool cannot be used.
Project: Translate requirement document