ruflin/Elastica — pull request #195 by GordyD (2012-06-22 16:57:27+00:00)
Title: Remove unsupported use of minimum number should match for Boolean Filter...

... see http://elasticsearch-users.115913.n3.nabble.com/Bool-filter-does-not-support-quot-minimum-number-should-match-quot-td4018943.html for more information.