Enable global data objects and handlebars

[MikeCarbone]

So objects like:

formData -- this one will be hard, maybe impossible / too much
selectedRow
urlQuery
authData
interweave -- globals

Then these can be accessed elsewhere in the config like:

interface: {
  form: {
    options: {
      data: {
        uri: "https://api.example.com/bars/{{ selectedRow.id  }}"
      } 
    }
  }
}