[1/2] Settings: rework quiet hours notification

Using a service is a bad idea given the fact that we cannot
be sure that the service is not beeing killed from android.

While this fixes the problem for the notification
the problem of the SmsCallService remains and must
be solved separate

PS2:
-trace active quiet hours
-renaming

PS3:
-added init hook

http://jira.omnirom.org/browse/OMNI-896

Change-Id: I77517de514a07c831772479fb4b3d8fb9101c76c