Added a few lines to support min_doc_count, format, order, pre/post offset/zone see http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-aggregations-bucket-datehistogram-aggregation.html
Merge pull request #173 from hayssams/feature/min_doc_count

Added a few lines to support min_doc_count, format, order, pre/post offs...
Add "version(Long)" in UpdateDsl
Merge pull request #174 from Dinduks/add_version_in_UpdateDsl

Add "version(Long)" in UpdateDsl