Merge branch 'shelve-long-process-validation' into feature-11-notification-area
Merge branch 'feature-11-notification-area' into changing-hide/close-usage
bugfix
Merge branch 'changing-hide/close-usage' into feature-11-notification-area
Merge branch 'feature-11-notification-area' into shelve-long-process-validation
removed unnecessary method
removed buggy recheck method
all property widgets have now a propertyToWidget() method
Refactoring
rechecking is working now