Get geonames country data, store as JSON-LD in index (see #98)
Use `addressCountry` geonames URL as parent of OER docs (see #98)
Filter OER docs by country label in parent geonames doc (see #98)
Don't return geonames documents on `/oer` queries (see #98)
Implicitly use `q=` param as location if no location is given (#98)
Update to Elasticsearch 1.1.0 and use Elasticsearch on aither
Merge pull request #99 from hbz/issue-98-geonames

Support queries by country label via separate geonames documents and parent-child queries