#272 ScheduleManager cannot do -1 repetitions

[Renaud Bruyeron]

Attached is the patch to fix this problem.
2 lines in ScheduleManager are currently commented out
that prevent deploying of a ScheduleProvider with
repetitions=-1 (to repeat the schedule indefinitely).

The patch uncomments them. I've run jboss HEAD for over
a week with a -1 repetition schedule with no problem.

Any good reason for the comments ?

- Renaud