= New Features

* The sessions plugin now supports RodaRequest#session_created_at
  and RodaRequest#session_updated_at for the times of session
  creation and last update.

= Other Improvements

* The json_parser plugin now correctly parses the request body even
  if the request body has already been read.

* The sessions plugin now correctly handles upgrading rack cookie
  sessions when using rack 2.0.8+.
