Why does each request accumulate _jv records in the store (or why doesn't status work)?

[Noel da Costa]

Each time a request is made I end up with an extra record under the _jv node in the store. E.g.:

Some questions:

1. I'm concerned that this might represent a memory leak?
2. If I'm interested in the status and timestamp of a request, how do I know which of these records to reference?
3. The docs say that the response will contain the id of the request... but I'm always only ever seeing id = 1 in the response, which is the id in my persistence layer, i.e. that returned by the back-end api. I'm not seeing a response id which correlates to these request ids.
4. status as described here: https://github.com/mrichar1/jsonapi-vuex#status doesn't seem to work. It just shows as undefined if I do the console.log(status).

Here's what my response object looks like as returned by the _jv action as an async:

Here's what it looks like as a promise:

[Matthew Richardson]

The status code is designed in a way that can't be guarenteed to work with how Vuex handles action promises. It will be being rewritten, but this hasn't happened yet.

Closing this in favour of #75