Unanchored relations now have their RelationOccurrence and its Anchor with null alias and -1 position when document is sent to server to be saved
InnerWindows and OuterStages now have minimal size
Fix #15
OuterStages now have proper icon too
Minor layout changes in object list for graph
New objects now loses aliases even if they are replaced as candidates by db objects
Relation list view now shows relation alias too
When assigning objects to relations, objects have their type displayed
When selecting object the current selection is displayed (not as a label but as selected record in list)