Began work on notification
More Javadoc in NotificationHelper
Localized notifications shown on pending and ringing alarm
Updated comments
Merge branch 'notification' into development

Conflicts:
	application/src/se/chalmers/dat255/sleepfighter/activity/AlarmActivity.java
	application/src/se/chalmers/dat255/sleepfighter/reciever/AlarmReceiver.java
	application/src/se/chalmers/dat255/sleepfighter/service/AlarmPlannerService.java