cylc/cylc — pull request #868 by matthewrmshin (2014-01-24 15:07:18+00:00)
Title: Support loadleveler job vacation: handle SIGUSR1

On receiving a `SIGUSR1` signal, a job script will remove its status
file, and send a message to the suite to indicate that it has been
vacated. The server will reset the status of the task (job) to
`submitted`. This change resolve cylc/cylc#867.