Fix Lucene version of 5.6.1.
Fix Lucene version of 5.6.1.

vroyer/elasticassandra,vroyer/elassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elasticassandra,vroyer/elassandra,strapdata/elassandra,vroyer/elasticassandra,strapdata/elassandra,strapdata/elassandra