Redirect to portal if HTML is requested

[carueda]

See ESIPFed/sweet#70 (comment)

More concretely: when the format=html query parameter is included or the Accept header contains text/html(typically the case from browsers) in the ontology or term request, then it will be immediately dispatched with redirection to the portal.

@lewismc FYI

[carueda]

COR instance updated with the new 3.8.2 release.

You can now trying clicking in your browser:

• http://sweetontology.net/stateVisibility
• http://sweetontology.net/stateTimeGeologic/0.0117MYA

Or, explicitly indicating format=html or Accept: text/html in your preferred command line program, eg:

http -h get 'http://sweetontology.net/stateTimeGeologic?format=html'
HTTP/1.1 302
...
Location: http://cor.esipfed.org/ont?iri=http://sweetontology.net/stateTimeGeologic

$ http -h get http://sweetontology.net/stateTimeGeologic "Accept: text/html"
HTTP/1.1 302
...
Location: http://cor.esipfed.org/ont?iri=http://sweetontology.net/stateTimeGeologic