low level client now generated off 1.2 spec
Merge branch 'master' of github.com:elasticsearch/elasticsearch-net
fixed aggregations to work on 1.2, this means that for now .Histogram() response helper is broken on anything before 1.2
upgraded aggregations to work with 1.2, hopefully if https://github.com/elasticsearch/elasticsearch/pull/6465 is good enough to be merged starting from Elasticsearch 1.3 we can use _meta to greatly simplify parsing