Updated ITSL content (v0.8.1)

o Added a service and a permission to Manifest

o Try-and-catched some method calls in FragmentHome to avoid null
pointer exception on app start

o Added a timed service to do updates in the background, please see
FragmentITSL.java and TimeAlarm.java for reference on how to do that (we
should all probably use a common background service to do that work)