Several minor changes - comments - 'cls' used where relevant i.o. class name - dynamic getting/setting properties reviewed - SF_Platform properties: set level = 1 i.o. 0 when returned by PythonHelper module Change-Id: I4e9877bc16efd340dc14693833c032c998329b6e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/172836 Reviewed-by: Jean-Pierre Ledure <jp@ledure.be> Tested-by: Jenkins