Select term defintion instead of first occurance

[faubulous]

Selecting a term in the tree view does select it's first occurance in the document, but not necessarily the term defition.

• For classes this is the line where ?c a rdfs:Class / owl:Class
• For properties this is the line where ?p a rdf:Property / owl:...
• For inidivuals this is the line where there is a type defition.

So we need to find the line of the type definition.