# 2.3.0 (22nd March 2016)
* Remove request session and token headers from response headers
* Code refactor 

# 2.2.2 (22nd March 2016)
* SESSION_HEADER is no longer duplicated because when the header contains an ActiveRecord object or something similar, it changes the object id

# 2.2.1 (11th January 2016)
* Fix main module NameError

# 2.2.0 (11th January 2016)
* Added authentication during request batch

# 2.1.1 (5th November 2015)
* Code refactoring to prepare next features

# 2.1.0 (4th November 2015)
* Removed error response format because of unexpected side effects

# 2.0.1 (30th September 2015)
* Removed obsolete gem dependencies
* Now ensures the response is properly formatted and not empty, or returns an error

# 2.0.0 (26rd August 2015)
* Removed session_header from configuration options
* Now passes the whole env to the session Proc

# 1.2.1 (24rd July 2015)
* Using env['HTTP_X_REQUEST_ID'] or env['rack-timeout.info'][:id] or generate unique hex to identify request batch

# 1.2.0 (23rd July 2015)
* Removed logging, added batch START and END logs

# 1.1.4 (17th July 2015)
* Added batch session

# 1.1.3 (25th June 2015)
* Fixed nested hash to url_encoded

# 1.1.2 (17th February 2015)
* Added logs

# 1.1.1 (31st December 2014)
* First stable version