OUTLINER_OT_parent_drop
* use scene of child instead of active scene
* poll to check if parent and child are in same scene
OUTLINER_OT_parent_clear
* get scene from child instead of only working on active scene
* poll to check if no parent
OUTLINER_OT_scene_drop && OBJECT_OT_make_links_scene
* memory leak on error
* would only link some objects on error
52aad984b6