Update docker python dependencies
Update docker python dependencies

 - Use latest docker package
 - docker-py can no longer be installed alongside the docker package
   and is not needed, so make sure it's removed.

openaustralia/morph,openaustralia/morph,openaustralia/morph,openaustralia/morph,openaustralia/morph,openaustralia/morph,openaustralia/morph