Release 2.3.0

As this release breaks backward compatibility, a detailed explanation about the breaking changes can be found here

Backward Compatibility Breaks

• Objects do not casts to arrays in setters and saved in params as objects. There is many side effects if
  you work with params on "low-level" or change your objects after you call setter with object
  as argument. #916

Added

• Add Script File feature #902 #914

Improvements

• Support the http.compression in the Http transport adapter #515
• Introduction of Lazy toArray #916
• Update Elasticsearch dependency to 1.7.2 #929