Changes

The following requirements must be fulfilled to add a [[MetaPropertyMetaproperty]] to a [[MetaClassMetaclass]]* The MetaProperty Metaproperty must have a valid name* The MetaClass Metaclass may not have a MetaProperty Metaproperty with the same name* The MetaClass Metaclass may not inherit a MetaProperty Metaproperty with the same name* None of all the derivates of the MetaClass Metaclass may not have a MetaProperty Metaproperty with the same name* The MetaClass Metaclass must be editable