A smaller PR from scrutinizer with good advices on doc

Revert "Scrutinizer Auto-Fixes"

Scrutinizer Auto-Fixes

Update facture.php

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/eldy/dolibarr/inspections/dce98b05-0037-4277-b1e9-7fd6405a6cd6

Enabled analysis tools:
 - PHP Analyzer

orders

Conflicts:
	ChangeLog

Remove a space

Scrutinizer Auto-Fixes

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

Conflicts:
	dev/codesniffer/ruleset.xml

Conflicts:
	htdocs/core/class/html.form.class.php
	htdocs/fourn/commande/fiche.php

https://scrutinizer-ci.com/g/eldy/dolibarr/issues/develop?orderField=path&order=asc

Fix: Solve a lot of checkstyle errors.

Migrated old message notifications to the """new""" system

Refactored Dolibarr triggers

Added missing doActions for supplier order fiche.php

Removed @ operator from dol_include_once

order/invoice.

Conflicts:
	htdocs/contrat/class/contrat.class.php