Extend search to country code or other fields in details documents
We should consider extending the search URLs to country codes. This isn't trivial to implement, because we'd have to look at all details documents in order to know which relay summaries/details/bandwidth documents to return. Maybe we'd need to cache this information in the servlet. Also requires a protocol change, e.g., new URLs like /summary/search-details/:searchterm which may look at other fields in details documents as well.
(This was issue 18 in my GitHub repository.)