notifier fix: forums_digest.sh wasn't copied

Getting error on ansible run:

    TASK: [notifier | make the script executable]
    ********************************* failed:
    [ip-10-0-31-185.us-west-1.compute.internal] => {"failed": true, "item":
    "", "path": "/opt/wwc/notifier/bin/forums_digest.sh", "state":
    "absent"} msg: file (/opt/wwc/notifier/bin/forums_digest.sh) does not
    exist, use copy or template module to create  FATAL: all hosts have
    already failed -- aborting

Copy play just missing for some reason, adding.
notify deploy: ignore errors stopping prior run

OK for stop to fail, just proceed to checkout.