little improvements
started new design of the notifications
Refactoring: Moved notification files to own directory
Refactoring: using now a provate class as shared data class
Merge branch 'refactoring' into feature-3-refactoring-properties
refactoring: fixed intendation and renamed wiget class
Merge branch 'feature-3-refactoring-properties' into feature-11-notification-area
started implementing notification manager
shelved