qisrc foreach : add --continue as alias for --ignore-errors
qisrc foreach : add --continue as alias for --ignore-errors

(toc foreach used to accept both)

dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild