Renamed getPathName to getFullName and moved it to NamedElement.
getFullName returns the name of an element including its array indices.
It currently does that for FeatureInstance and ComponentInstance
objects.
For those objects the basic name from the declarative model is stored as
name and the indices as separate attribute.
added method for incomingConnectionReferences
Currently use allConnections on system instance instead of iterator of
enclosingconnections. That one needs to be debugged.