Track whether the producer is running or not internally, since apparently producers can be shared.
Track whether the producer is running or not internally, since apparently producers can be shared.

git-svn-id: 3690ca8e8b93aad95f5b520fc409c00b09b1d475@17504 6e01202a-0783-4428-890a-84243c50cc2b

concord-consortium/sensor,concord-consortium/sensor