Query and show more external links from the Lobid API
Merge branch 'master' into lobid-support
Make Google Books links target='_blank'
Query DBpedia for Wikipedia links
Wikipedia link extraction from DBpedia links (uncommented since no CORS-support by de.dbpedia.org)
Some refactorings and initial person query stuff
Merge branch 'lod-support'

Conflicts:
	app/views/records/show.html.slim
Merge branch 'master' of github.com:ubpb/catalog