Hyperion: remove models by id in rule's removed array
Hyperion: add alias 'fetch' to 'getLinked' class method
Hyperion: handle missing type on Event/Item save
Atlas: allow fetching of instance, not only ids
Rheia: allow setting Item and Event id during creation on moderation perspective
Rheia: alternative text can be set in loadableImage
Rheia: item's map changes not displayed in moderation (when map was previously not existing)
Atlas: add images service
Hyperion: fix null management in model updates
Hyperion: allow path to node_modules scripts from rules
Atlas: fix broken callback on events
Atlas: fix tests