shrine

Pull request #1388: Feature/SHRINE2020 1383

Merge in SHRINE/shrine from feature/SHRINE2020-1383 to SHRINE2020-1378-remove-dsa

* commit '3db9c84cfdc8e62a20c268ba95836d2f1c727668':
  Some dead properties in some tests while reviewing SHRINE2020-1383
  Use the modern driver name instead of the backwards-compatible alias in the example context.xml file - SHRINE2020-575
  Now with empty database schema files for SHRINE2020-1383
  Adding the DSA database schema back for SHRINE2020-1383
  Removed all things 'steward' for SHRINE2020-1383
  Removed all the DSA back-end code for SHRINE2020-1383
  Removed dependencies on DSA code from the https services for SHRINE2020-1383