made params optional for change_aliases
Added ES (0.90.4) function_score_query (http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-function-score-query.html)
Merge from upstream
Merge branch 'release/0.90.1'
Added missing sys version
Merge branch 'hotfix/Added_missing_is_py3_variable'
Changed the merge back to six away from sys.version
Merge branch 'hotfix/0.90.1.2'
Added fix for wrong argument
Merge branch 'hotfix/0.90.1.2'
allow native scripts in term facets
made params optional for change_aliases

changed to dict

changed actions

Fixed Field logic in TermStatsFacet
commenting out fix_keys call in facets
removing line
Merge commit '3a478ff' into eg-fixes
removing old code
add parameter to set SSL certificate validation policy
Merge pull request #363 from sim0nx/master

add parameter to set SSL certificate validation policy
Merge pull request #360 from jesushernandez/nativeFacetScripts

Allow native scripts in term facets
Merge pull request #357 from julianhille/master

new class for function_score_query