Fix: Must unaccent strings into SEPA file.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/eldy/dolibarr/inspections/128b4bb3-f689-4974-8fd7-a7b93d012d3f

Enabled analysis tools:
 - PHP Analyzer

http://php.net/manual/en/language.basic-syntax.phptags.php

Conflicts:
	ChangeLog

I'm getting tired of these commits...

Qual: Removed deprecated vars
Qual: Free memory

Fixed bug #866: Standing order from an invoice suggests invoice total amount instead of remaining to pay

upgrade were not yet received. So we prepare for GPL by uniformizing
licence text keys to GPL-3+. Will move later to AGPL if all answers are
positive.

mandatory

mandatory

commits !