Add DockerHub to release process
Add DockerHub to release process

dipinhora/ponyc,sgebbie/ponyc,sgebbie/ponyc,ponylang/ponyc,jemc/ponyc,sgebbie/ponyc,sgebbie/ponyc,dipinhora/ponyc,dipinhora/ponyc,jemc/ponyc,jemc/ponyc,ponylang/ponyc,sgebbie/ponyc,ponylang/ponyc