[MERGE] forward port branch saas-15 up to c301122b

addons/account/models/company.py

addons/account/tests/test_account_move_closed_period.py

addons/account/tests/test_reconciliation.py

addons/account_lock/__init__.py

addons/account_lock/__manifest__.py

addons/account_lock/models/__init__.py

addons/account_lock/models/res_company.py

addons/google_calendar/models/google_calendar.py

addons/hw_escpos/escpos/escpos.py

addons/l10n_fr_certification/models/res_company.py

addons/mass_mailing/models/mail_mail.py

addons/sale/models/product_template.py

addons/website_event/i18n/website_event.pot

addons/website_event/static/src/js/website_event.js