Rename: val RDFGraph -> val rdfGraph
Move "flickrOAuthSession" to the companion class (from the companion object)
Formatting
Namespaces vals: protected (<- private)
Formatting
BugFix: correct Namespace origin
BugFix: "foaf" namespace is common
Add parameters to FlickrDBpediaSearch (similar to what I did to FlickrGeoSearch in 1f044cc011973ab0a4f4c6ac7ba972d6f147eef1)

Completes 1f044cc011973ab0a4f4c6ac7ba972d6f147eef1
Add missing parenthesis
BugFix: dataFullUri[Resource] is only for GeoSearch (not for DBpediaSearch!)