To make it clearer what is and isn't generated content, make gen place
all generated output in `target/gen`.
Also, try to make the readme clearer about the location of build
artifacts.
type: development
Don't commit man pages, since that bloats commits.
Attempt to build them in `bin/package`. This is fraught, since we need
`help2man`. Hopefully this works!
type: development
Committing the completion scripts bloats diffs, so stop committing them.
Before copying release files, generate the scripts in `bin/package`.
type: development
Shell completion scripts can be generated for `bash`, `elvish`, `fish`,
`powershell`, and `zsh` with the `completions` subcommand:
$ imdl completions --shell zsh > imdl.zsh
The same scripts are available in the `completions` directory. Please
refer to your shell's documentation for more information on how to
install and use completion scripts.
type: added
