final application icon by Davide Mauriello
ask for the WAKE_LOCK permission

needed to have the WakefulBroadcastReceiver introduced in SHA: 2f5024f5c5caaf1b2c0c2f4f966b6c3ac22fe3dd and SHA: 4fbb7e8659fd41207fa132b7c820869b6dbc19a8 properly working
commented out System.out calls
added if condition to prevent NullPointerException
service is no longer started and stopped by the Application class
hopefully improved contact photo loading
startalarmrepeater message to the DrinViewerBroadcastReceiver is now sent in onServiceConnected method
improved logic to stop the service when the Wi-Fi goes down, closes #2