Location subscription persistence update

Location subscriptions are stored in the service's sqlite database.
The service now clears out location subscriptions when it first
starts to ensure that they are not carried over if the VM restarts.
Location subscriptions are not cleared out on scheduled service
restarts (i.e. if the service crashes).

Change-Id: I8ecaeb6128f22478d6295a84d2c35a39336b45e0
Added LogCat log forwarding

Added LogCat log forwarding to the event server.
Sends logs over UDP to a destination server.
Configure using "config.properties" file.