sksamuel/elastic4s — pull request #191 by fredrikroos (2014-08-25 11:27:45+00:00)
Title: Use match_all as default filter in filtered query

In the Elasticsearch JSON search DSL, using a filtered query without a
query will use the match_all query by default. This change mimics that
behaviour in the Scala DSL, which avoids an exception when not
specifying a query.

Fixes #186