- fix failing start/exec/wait that were failing because they were put into an upgrade connection and not into a direct proxy
- allow to pass parameter as a json for docker host:
DOCKER_HOST='tcp://proxy_addr:proxy_port/{"user":"foo","envid":"1","apikey":"ptr_xxxxx"}' - latest image: https://github.com/pleclech/portainerproxy/pkgs/container/portproxy