v0.8.1

What's Changed

• Add log output when healthcheck fails by @dhh in 8e918b1
• Retry healthcheck up to five times if healthcheck container isn't ready by @dhh in 1ccf679
• Protect against rolling back to a missing version by @dhh in a0d71f3
• Stop app containers before trying to remove them by @dhh in 0fa70f4
• Add confirmation prompt when trying to remove accessories by @dhh in 67cb89b
• Remove need to use ERB in order to reference registry password from ENV by @dhh in 28be8dc
• Expand arguments in docker commands to their full, self-explanatory versions by @dhh in 5898fdd
• Remove images of the same name as the one being pulled to prevent orphan, untagged dupes by @dhh in 42b3434
• Properly escape shell arguments by @pagbrl in #53
• Add support for ed25519 SSH keys by @pagbrl in #53

Full Changelog: v0.7.2...v0.8.1