[NONE] Rename FXClearInteractionModelsOperation to indicate which models are actually cleared.
[450285] Remove IDetachContentAnchoragesPolicy and IDeleteContentChildrenPolicy.
[450285] Extend IContentPart API to be able to create/delete content and establish/unestablish content anchor relations.
[450285] Implement new IContentPart API in MVC.Example.
[NONE] Enhance javadoc.
[NONE] Fix class-path issue in the example (images could not be loaded).
[450285] Fix NPE, attribute 'roles' was not initialized.
[NONE] Fix class-path issue in Zest.FX (images could not be loaded).
[449942] Use first pointer location after registering the mouse handler to get rid of the calls to AWT.