* bump development version number

* missing support

added missing support to [field value factor](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-function-score-query.html#function-field-value-factor)

* updated docs

* proposed changes

* Add getQuery Method to FunctionScoreQuery

Add getQuery Method to FunctionScoreQuery in order to apply changes to query of FunctionScoreQuery.

* Update FunctionScoreQuery.php

* Add getQuery Method to FunctionScoreQuery

Add getQuery Method to FunctionScoreQuery in order to apply changes to query of FunctionScoreQuery.

* Update FunctionScoreQuery.php

* remove deprecated queries

* move tests

* added support for 5.x elasticsearch syntax

changed script_score lang to painless

* refactored tests to support elastic 5

* update changelog

* uri parameters was moved to container, introduced 5.0 new request body parameters

* removed filter endpoint, change order for query and postfilter

* search test has too many not necessary test cases

All those tests has to be in specific query or endpoint. Also functional tests make more sense then asserting it in the SearchTest

* moving elasticsearch/elasticsearch to required dependencies

* move queries to specific domain level folder

* fixed namespaces

* added deprecation messages

closes #27

In method addRandomFunction.
Elasticsearch expects object not array and empty array will not be made into object.

In method addFieldValueFactorFunction.
Elasticsearch documentation says that it is optional.

Closes #74.