[DF-1246] move owner prop methods to helper
[DF-1246] add forgotten header
Merge remote-tracking branch 'origin/DF-1066_designerName_resEditor' into DF-1066_designerName_resEditor
Merge branch 'DF-1066_designerName_resEditor' of https://github.com/adebt/dava.framework into development-qa