Service/client split, the service folder will become the lib that goes in fennec
Added comment to TurnOffReceiver regarding how to test it
Also remove the aidl and manifest entry for ScannerService.
Move StumblerBundleReceiver inside the service.
Prefs moved into service. Accessed through StumblerService by the client code.
Addressing items from Guilherme's review. Note I left the BuildVersion in the service, as I see it belonging there. Arguably, there should be 2, one for client and one for service, but service version is the most important that I can see.