package.json

[arlolra]

if i'm going to work on getting haraka into the npm registry, a package.json is a good place to start

[baudehlo]

OK merged and closed - but can cluster be made into an optional dependency, or does npm not support that?

[arlolra]

optional dependency, that sounds like a bit of contradiction in terms.
npm man json does not list any sort of optional or add-on package field.

i guess you can remove it if it bothers you.
but, although haraka isn't strictly dependant on it, i don't see the harm in installing it.
can't be more than a couple kb.

[baudehlo]

Well perl's CPAN stuff has optional dependencies and it allows you to provide a prompt which says "X is optional and provides feature Y. Do you wish to install it now? [Y/n]"... Just thought there might be something like that.

No there's no harm in forcing it to be honest. I'll just apply the pull request.