Change Request #4075
Change Request #4013: [UI] Collection task SWT based views -> JavaFX-based views
Rework the ContextMenu- and the ActionService
Classes used in these services inherit from JFace elements such as IContributionItems and Actions (NB: not Runnables).
In general, they are have strong dependencies with each other and the TutorialService. Thus, they are hard to maintain and their architecture should be reconsidered.