Defaults for finding the 'main' bundle in production.

[matthewp]

Currently the default when no main is provided by the steal configuration option is to use either steal.main or main from the package.json. However this can cause problems if there is not enough information in the package.json to find the main bundle.

Possible solutions:

New config option

Create a new field, maybe called bundle or something that points to the exact path of the bundle:

ssr({}, {
  bundle: __dirname + "/dist/bundles/package/index.js"
})

Some algorithm that can find the main bundle

Create a new package that scrubs the filesystem to search for the main bundle. It could do this by using the package.json as metadata, but would have to have some knowledge for how the main lookup logic works in steal.js.