#198 RDF link returns nothing

[Jim Balhoff]

Clicking on an RDF link seems to work on something for a while but returns an empty document (nothing, not even empty RDF). For example, on this page:
http://www.treebase.org/treebase-web/search/study/summary.html?id=423
click on the RDF link which goes here:
http://purl.org/phylo/treebase/phylows/study/TB2:S423?format=rdf
and redirects to here:
http://treebase.org/treebase-web/search/downloadAStudy.html?id=423&format=rdf