Update dependencies
Use ruby-oembed instead of openseadragon-rails
Update spotlight database migrations
Update spotlight
Style the oembed widget as a col-md-6
Register purl oembed provider
Use gdor-inspired solr fields
Use https git uris
Update dependencies
Only populate the username if we got a REMOTE_USER header
Add all fields as index fields to give the curator full control over index and show view displays