This is almost certainly the correct default for Dokku. While it's a BC break and might cause an increase in memory usage, the api is mostly internal and therefore this is safe to use.
This better follows Heroku's output and is more useful to users. The subcommands will be treated as the primary, documented versions, while the aliases are there for convenience.
Closes#5362
This hopefully makes it a little easier to work with as the tooling is now based on something in golang core.
- move columnize usage to common plugin
- remove old vendor files
