Give properties of HTML view a link

[guenterh]

fyi @witzigs
The properties shown in the HTML view should be associated with the URI which defines the property.
Actually we can see only the simple literal. E.g.

P60050
should get the link
http://www.rdaregistry.info/Elements/u/#http://www.rdaregistry.info/Elements/u/#/P60050

[guenterh]

There is an additional error
the namespace of the prefix rdau defined in the JSON-LD context is missing the last # character
instead of rdau: "http://rdaregistry.info/Elements/u/"
it should be defined as
rdau: "http://rdaregistry.info/Elements/u/#"

[guenterh]

But for before changing it for production we have to test the transformation processes (Metafacture / limes) . Especilly limes because it is using the context from resources.swissbib.ch