Draft for the Heroku deployment (not working yet)

[eric-burel]

Hi,

I drafted a 2-repo deployment for Heroku. However, it does not work yet, I think that the METEOR_PACKAGE_DIRS is incorrect though I can't fix it, as [described in this issue](https://github.com/AdmitHub/meteor-buildpack-horse/issues/188](https://github.com/AdmitHub/meteor-buildpack-horse/issues/188 )

Also, I have no idea how you would handle a private repo for the custom Vulcan packages. However most of the time you'll use this kind of install either to enjoy the latest PR before they are merged into Vulcan or on the opposite to keep old versions of the packages, so I guess very few people will need to hide their packages code in a second private repo, they'll use the usual install process instead and put those private files directly into their app code.

[ErikDakoda]

Hi @eric-burel, Do you want to merge this pull request into the current docs, or is this outdated?

[eric-burel]

No I think we can leave it here. I was on the right track but I never had time to figure this out. Now I deploy on AWS instead or copy Vulcan in the code before pushing to Heroku but this doc is still (almost) relevant.

[eric-burel]

Maybe someday someone will manage to this and help finishing this doc.