dogwood.3-1.2.0

Added

• Make Gunicorn timeout, workers and threads configurable via
  an environment variable
• Configure all cache backends

Changed

• Make ORA2 configurable and use filesystem backend by default
• Stop inheriting from MKTG_URL_LINK_MAP default setting

Fixed

• Ensure all required directories exist inside each volume
• Refactor settings to repair and clean what is cms versus lms, configurable
  versus defined by code.