4.0.0a9 (27 Apr 2016)

General

• Changed create_index API to use kwarg extra_settings instead of body
• Normalized Alias action to use name instead of alias. This simplifies
  documentation by reducing the number of option elements.
• Streamlined some code
• Made exclude a filter element setting for all filters. Updated all
  examples to show this.
• Improved documentation

New Features

• Alias action can now accept extra_settings to allow adding filters, and/or
  routing.