Changes
* Deleted metaclasses do not show up as possible "pool metaclass" custom system objects any more
* UBIK does not crash anymore when not being able to access the UBIK Licensing services
* A bug when releasing Metaclasses with string props containing a large string strings (e.g annotations) is fixed now* Problems when deriving from MRO Mteeaclasses (not compiling customizing code) is fixed now.
=== Enhancements ===
