Respect case in fragments

[nicholascar]

Make FID generator use the same font case at class names so PIDs like http://linked.data.gov.au/def/geofabric#ContractedCatchment redirect to a working fragment, not the page top. Here for ContractedCatchment, currently only http://www.linked.data.gov.au/def/geofabric/#contractedcatchment works.