aparo/pyes — pull request #279 by piterimov (2013-04-07 14:42:21+00:00)
Title: Add 'mean' and 'reverse_mean' orderings for TermStatsFacet

Hello,

This is small update to add 'mean' and 'reverse_mean' ordering values for TermStatsFacet.
Please look here http://www.elasticsearch.org/guide/reference/api/search/facets/terms-stats-facet/

Thanks.