send presence in order not to receive unwanted text messages directed at other resources in the sender and listener connection
don't stop service in onDestroy (gets invoked when pressing back button in the activity). Stopping the service only possible by using the switch in the main activity
start after boot
sound when notified and rudimentary offline / online indication
added settings activity
added ability to open app after noisemaker
fixed receiver switch set to false no matter what after destroying and reopening the activity