Merge branch 'feature-3-refactoring-properties' into feature-11-notification-area
NotificationDialog is now opening somehow
not using exec anymore
notificationdialog is now modal
refactoring
started implementing range value widgets
the range value toolbutton have now icons
added statustips
bugfix
range value widgets are working now
using now different pattern for replacements
bugfix
improved notification widget
a little improvement
[NOT COMPILABLE] started refactoring: NotificationWidget is now a NotificationWidget stack
[NOT COMPILABLE] introducing special class for storing a notification stack
refactoring notification widget
the notificatoindialog is working now
bugfix
added signals