Include 'linked' member for json-api collections

Include top-level 'linked' member when using JSON-API adapter. Needed to pass the hash to the elements in the collection, using the options hash worked, but I'm open to suggestions.  
Yes, when include is used any other rule for inclusion/exclusion of resources in linked should be ignored

```
An endpoint MAY also support custom inclusion of linked resources based upon an include request parameter. This parameter should specify the path to one or more resources relative to the primary resource. If this parameter is used, ONLY the requested linked resources should be returned alongside the primary resource(s).
```