send mail to supplier when order finishes
fix mail to supplier attachment (complements ac2bfa9f1efe0b7f3e192faa412ed8c9491c6113)
fixup! localize supplier attachment (complements ac2bfa9f1efe0b7f3e192faa412ed8c9491c6113)
fixup! fix and improve supplier send mail (complements ac2bfa9f1efe0b7f3e192faa412ed8c9491c6113)
move finish order to ajax dialog
fix supplier mailer spec