Changes
* Added a button to the Document Item to revert and commit unsaved changes.
* Fixed an issue that caused the app to crash when deleting all profiles.
* Fixed an issue when selecting Annotations that where created in former sessions. The problem was limited to still exists for Free Texts onlyText Annotations though.
* A problem with updating the list of root objects is fixed now. If roots objects are not part of the collection any more, the corresponding tile disappears now as expected.
