Changes
=== InterfaceTimestamp ===
This timestamp actually becomes transformed to the ets or its so it exists twice.
==== ImportTimeStamp (ITS) ====
Saves the UTS of a property of an Ubikle so that a third party system knows when the value has been changed.
If UBIK cannot find the property set the InterfaceTimeStamp to now.
== On ProxyLevel / Proxy ==
