v1.10.0

Added

• Documentation explaining how to upgrade a Conjur server deployed in a
  Docker Compose environment. cyberark/conjur#1528, cyberark/conjur#1584
• When Conjur starts, we now convert blank environment variables to nil. This ensures we treat empty environment values as
  if the environment variable is not present, rather than attempting to use the empty string value. cyberark/conjur#1841

Changed

• The "inject_client_cert" request now returns 202 Accepted instead of 200 OK to
  indicate that the cert injection has started but not necessarily completed.
  cyberark/conjur#1848

Fixed

• Conjur now verifies that Kubernetes Authenticator variables exist and have value before retrieving them so that a
  proper error will be raised if they aren't.
  cyberark/conjur#1315