Make sure search_type=count works
geohash_grid instead of geo_hashgrid

The agg keyword is misspelled
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-aggregations-bucket-geohashgrid-aggregation.html
Common Terms should be renamed Common as in the documentation

See the docs here:

http://www.elasticsearch.org/guide/en/elasticsearch/reference/1.x/query-dsl-common-terms-query.html#query-dsl-common-terms-query

Thanks,

Andy.
Add support for requesting just the _id and _type of each hit.

Currently, you can only specify at least one field to be
returned, or the whole document.  There is no way to request
that no fields be returned.

WARNING: This is a breaking change. search.fields() now
expects a list of field names or None as an argument, instead
of *args where each argument is a field name.

Closes issue #26
adds match_phrase and match_phrase_prefix queries, fix percentiles typo
Updated README

Thanks @karmi!
More documentation
Merge branch 'master' into mapping