Merge pull request
#4270 from minrk/task-timeout...
Merge pull request
#4270 from minrk/task-timeout
adjust Scheduler timeout logic
Timeout starts when task submission is attempted. That is, it starts each time in resubmit / retry cases.
Avoids issues of timeout firing only once while a task is pending, when it might come back and be retried after the timeout has fired.
Also adds a ten second timeout for sync calls in the tests, which should hopefully avoid hangs when things are misbehaving.
closes
#3210
