Never persists the tail-tracking to store

[PhilAndrew]

In MongoDbTailingProcess.java there is:
// the loop finished, persist the lastValue just in case we are shutting down
// TODO: perhaps add a functionality to persist every N records
tailTracking.persistToStore();
}

The problem here is that this code is never reached if I ctrl-c my program, there is no time that the camelTailTracking is persisted to store.

I had to place:
tailTracking.persistToStore();

inside the main while loop inside MongoDBTailingProcess.java

[PhilAndrew]

As a note, this is now not really such a good implementation as it uses an entire thread, if I'm in Scala I would try to use an Actor so that a whole thread is not used all the time. Although it works.

Also if I'm calling tailTracking.persistToStore(); every time in the loop, this is going to be inefficient. I need to consider a different way to store state.