Improvement/metadata on jsonapi render

[idlechara]

Currently there is no way to pass top-level meta objects in the current implementation as it only filters for pagination options, record_count and page_count.

This line allows to jsonapi_render to include top-level meta information in the following way:

jsonapi_render json: MyResource.first, status: :ok, options: { meta: { author: "Erik Regla", pls_approve_dis: "true" } } 

[npendery]

Any hold up on this change. It would be very useful!

[kceb]

@tiagopog could we add this? It would be very useful