add support for jsvc daemon

This will allow consistency-checker to run as a jsvc daemon. A corresponding lightblue-puppet change is still in the works for this.
For the timer, do we want it to stop the daemon?  When @derek63 and I talked about this we wanted to have the thing that started the consistency checker to ensure that the process was always alive.  Looks like this is the place to do it.  Basically, if the process dies start it again.  Proper shutdown should be done by stopping the daemon.